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News Release

Transit Police Investigation Results In Grand Jury Indictments; Three Suspects Charged With Attempted Murder - 10/27/25

MULTNOMAH COUNTY, Ore. — Three men are facing attempted murder charges for the alleged assault of a TriMet passenger.

  

At 8:51 p.m. on Wednesday, October 15, 2025, Transit Police responded to reports of three men assaulting a man in the doorway of a TriMet bus near Southeast Stark Street and Southeast 142nd Avenue in Portland.

 

According to court documents, the three suspects, 28-year-old Greffy Tom, 27-year-old Rinson (also known as Terson) Tom, and 33-year-old Audric Yesiki, tried boarding a TriMet bus, which resulted in a perceived delay by one of the passengers.

 

When the passenger, later identified as a 50-year-old man, attempted to intervene, the three men are accused of assaulting him.

  

Paramedics took the 50-year-old man to the hospital with severe and serious physical injuries.

  

When law enforcement from TriMet’s Transit Police Division arrived, the suspects had left. However, the quick response resulted in officers and deputies locating all three suspects.

  

On October 24, 2025, a Multnomah County Grand Jury indicted the three suspects on the following charges:

 

Rinson (Terson) Tom 

  • Attempted Murder in the Second Degree 

  • Three counts of Assault in the First Degree 

  • Three counts of Assault in the Second Degree 

  • Attempted Assault in the Second Degree 

  • Assault in the Third Degree 

  • Three counts of Unlawful Use of a Weapon 

  • Two counts of Interfering with Public Transportation 

  • Escape in the Third Degree 

Greffy Tom 

  • Attempted Murder in the Second Degree 

  • Two counts of Assault in the First Degree 

  • Two counts of Assault in the Second Degree 

  • Assault in the Third Degree 

  • Two counts of Unlawful Use of a Weapon 

  • Two counts of Interfering with Public Transportation 

  • Escape in the Third Degree 

Audric Yesiki 

  • Attempted Murder in the Second Degree 

  • Two counts of Assault in the First Degree 

  • Two counts of Assault in the Second Degree 

  • Assault in the Third Degree 

  • Two counts of Unlawful Use of a Weapon 

  • Two counts of Strangulation 

  • Two counts of Interfering with Public Transportation 

  • Escape in the Third Degree 

The suspects remain in custody.

  

No further information about the alleged assault is being released at this time pending the ongoing litigation.

 

Law enforcement assigned to Transit Police are focused on creating an environment where riders and TriMet operators feel safe. To accomplish this, Transit Police conduct high-visibility patrols, coordinated enforcement efforts with partnering agencies and proactive community engagement.

  

Charges are only allegations, and every arrested person is presumed innocent unless and until proven guilty beyond a reasonable doubt.

  

The information contained in this news release is based on a preliminary review of the details available to the Multnomah County Sheriff’s Office. As the investigation progresses, information may change.

  

About Transit Police:   

The Multnomah County Sheriff’s Office (MCSO) leads the multi-agency Transit Police Unit. Transit Police officers and deputies ensure a safe transit system by riding trains and buses and visiting platforms and stations. They respond to calls for service and investigate crimes that occur on TriMet property in Multnomah, Washington and Clackamas Counties. 

Current agencies comprising Transit Police include MCSO, the Portland Police Bureau, Port of Portland Police Department, Beaverton Police Department and Hillsboro Police Department. 

Funding for TriMet’s Transit Police Division is provided by TriMet, which provides bus, light rail and commuter rail service in the Portland, Oregon, region. TriMet’s transportation options connect people with their community, while easing traffic congestion and reducing air pollution – making our region a better place to live. 

### 

Transit Police Investigation Results In Grand Jury Indictments; Three Suspects Charged With Attempted Murder - 10/27/25

MULTNOMAH COUNTY, Ore. — Three men are facing attempted murder charges for the alleged assault of a TriMet passenger.

  

At 8:51 p.m. on Wednesday, October 15, 2025, Transit Police responded to reports of three men assaulting a man in the doorway of a TriMet bus near Southeast Stark Street and Southeast 142nd Avenue in Portland.

 

According to court documents, the three suspects, 28-year-old Greffy Tom, 27-year-old Rinson (also known as Terson) Tom, and 33-year-old Audric Yesiki, tried boarding a TriMet bus, which resulted in a perceived delay by one of the passengers.

 

When the passenger, later identified as a 50-year-old man, attempted to intervene, the three men are accused of assaulting him.

  

Paramedics took the 50-year-old man to the hospital with severe and serious physical injuries.

  

When law enforcement from TriMet’s Transit Police Division arrived, the suspects had left. However, the quick response resulted in officers and deputies locating all three suspects.

  

On October 24, 2025, a Multnomah County Grand Jury indicted the three suspects on the following charges:

 

Rinson (Terson) Tom 

  • Attempted Murder in the Second Degree 

  • Three counts of Assault in the First Degree 

  • Three counts of Assault in the Second Degree 

  • Attempted Assault in the Second Degree 

  • Assault in the Third Degree 

  • Three counts of Unlawful Use of a Weapon 

  • Two counts of Interfering with Public Transportation 

  • Escape in the Third Degree 

Greffy Tom 

  • Attempted Murder in the Second Degree 

  • Two counts of Assault in the First Degree 

  • Two counts of Assault in the Second Degree 

  • Assault in the Third Degree 

  • Two counts of Unlawful Use of a Weapon 

  • Two counts of Interfering with Public Transportation 

  • Escape in the Third Degree 

Audric Yesiki 

  • Attempted Murder in the Second Degree 

  • Two counts of Assault in the First Degree 

  • Two counts of Assault in the Second Degree 

  • Assault in the Third Degree 

  • Two counts of Unlawful Use of a Weapon 

  • Two counts of Strangulation 

  • Two counts of Interfering with Public Transportation 

  • Escape in the Third Degree 

The suspects remain in custody.

  

No further information about the alleged assault is being released at this time pending the ongoing litigation.

 

Law enforcement assigned to Transit Police are focused on creating an environment where riders and TriMet operators feel safe. To accomplish this, Transit Police conduct high-visibility patrols, coordinated enforcement efforts with partnering agencies and proactive community engagement.

  

Charges are only allegations, and every arrested person is presumed innocent unless and until proven guilty beyond a reasonable doubt.

  

The information contained in this news release is based on a preliminary review of the details available to the Multnomah County Sheriff’s Office. As the investigation progresses, information may change.

  

About Transit Police:   

The Multnomah County Sheriff’s Office (MCSO) leads the multi-agency Transit Police Unit. Transit Police officers and deputies ensure a safe transit system by riding trains and buses and visiting platforms and stations. They respond to calls for service and investigate crimes that occur on TriMet property in Multnomah, Washington and Clackamas Counties. 

Current agencies comprising Transit Police include MCSO, the Portland Police Bureau, Port of Portland Police Department, Beaverton Police Department and Hillsboro Police Department. 

Funding for TriMet’s Transit Police Division is provided by TriMet, which provides bus, light rail and commuter rail service in the Portland, Oregon, region. TriMet’s transportation options connect people with their community, while easing traffic congestion and reducing air pollution – making our region a better place to live. 

### 

MCSO Deputies Arrest Felon Accused Of Possessing Firearm, Stolen Pickup (Photo) - 10/20/25

MULTNOMAH COUNTY, Ore. (MCSO) – Deputies with the Multnomah County Sheriff’s Office (MCSO) have arrested a 30-year-old felon accused of being in unlawful possession of a firearm and a stolen pickup.  

 

Just before 10 p.m. on Sunday, October 19, 2025, a MCSO deputy saw a pickup parked at a closed gas station near 521 Southwest Halsey Street in Troutdale.  The deputy ran the pickup’s license plate and learned the vehicle was wanted in connection with a possible robbery out of Umatilla County. Deputies also learned a firearm was taken during the initial incident.  

 

The vehicle left the area before the MCSO deputy could conduct a traffic stop. However, the deputy immediately shared information about the pickup’s last known location with other patrol deputies and nearby agencies.  

 

Around 10:30 p.m., a separate MCSO deputy found the pickup parked at another gas station near 2533 Southwest Cherry Park Road. MCSO deputies and Gresham Police Department officers set up containment in the area, blocking off potential exits to the parking lot.  

 

Once deputies locked the area down, they approached the pickup and began giving the person inside instructions.  

 
The person inside, later identified as 30-year-old Jacob Richard Mack, initially refused to cooperate with the orders to exit the pickup.  

 

After multiple use of force warnings, deputies used a less-lethal projectile device to create better sightlines into the pickup for officer safety and to gain Mack’s compliance.  

 

The tactical planning had the desired outcome with Mack eventually exiting the truck without any further incident.  

 

There were no reported injuries.  

 

During the investigation, deputies recovered a firearm from the pickup.  

 

Deputies booked Mack into the Multnomah County Detention Center on charges that include: 

  • Unlawful possession of a motor vehicle 

  • First-degree theft 

  • Felon in possession of a firearm 

  • Possession of a stolen motor vehicle 

 

Charges are only allegations, and every arrested person is presumed innocent unless and until proven guilty beyond a reasonable doubt. 

 

The information contained in this news release is based on a preliminary review of the details available to the Multnomah County Sheriff’s Office. As the investigation progresses, information may change. 

 

### 

Attached Media Files: MCSO Press Release,

MCSO Deputies Arrest Felon Accused Of Possessing Firearm, Stolen Pickup (Photo) - 10/20/25

MULTNOMAH COUNTY, Ore. (MCSO) – Deputies with the Multnomah County Sheriff’s Office (MCSO) have arrested a 30-year-old felon accused of being in unlawful possession of a firearm and a stolen pickup.  

 

Just before 10 p.m. on Sunday, October 19, 2025, a MCSO deputy saw a pickup parked at a closed gas station near 521 Southwest Halsey Street in Troutdale.  The deputy ran the pickup’s license plate and learned the vehicle was wanted in connection with a possible robbery out of Umatilla County. Deputies also learned a firearm was taken during the initial incident.  

 

The vehicle left the area before the MCSO deputy could conduct a traffic stop. However, the deputy immediately shared information about the pickup’s last known location with other patrol deputies and nearby agencies.  

 

Around 10:30 p.m., a separate MCSO deputy found the pickup parked at another gas station near 2533 Southwest Cherry Park Road. MCSO deputies and Gresham Police Department officers set up containment in the area, blocking off potential exits to the parking lot.  

 

Once deputies locked the area down, they approached the pickup and began giving the person inside instructions.  

 
The person inside, later identified as 30-year-old Jacob Richard Mack, initially refused to cooperate with the orders to exit the pickup.  

 

After multiple use of force warnings, deputies used a less-lethal projectile device to create better sightlines into the pickup for officer safety and to gain Mack’s compliance.  

 

The tactical planning had the desired outcome with Mack eventually exiting the truck without any further incident.  

 

There were no reported injuries.  

 

During the investigation, deputies recovered a firearm from the pickup.  

 

Deputies booked Mack into the Multnomah County Detention Center on charges that include: 

  • Unlawful possession of a motor vehicle 

  • First-degree theft 

  • Felon in possession of a firearm 

  • Possession of a stolen motor vehicle 

 

Charges are only allegations, and every arrested person is presumed innocent unless and until proven guilty beyond a reasonable doubt. 

 

The information contained in this news release is based on a preliminary review of the details available to the Multnomah County Sheriff’s Office. As the investigation progresses, information may change. 

 

### 

Attached Media Files: MCSO Press Release,

MCSO Detectives Seeking Community Tips Related To Child Sexual Abuse Investigation (Photo) - 10/17/25

MULTNOMAH COUNTY, Ore. – Detectives with the Multnomah County Sheriff’s Office (MCSO) have arrested a 56-year-old man on more than 140 charges as part of an investigation into alleged crimes against children.

On Monday, October 6, 2025, MCSO detectives assigned to the Internet Crimes Against Children (ICAC) Task Force received information from the National Center for Missing & Exploited Children (NCMEC) detailing historical and recent sexual abuse of minor children and the dissemination of child sexual abuse material (CSAM) from a residence in Wood Village, Oregon.

On Thursday, October 16, 2025, detectives executed a court-authorized search warrant at the home, located near Northeast Pike Street and Northeast Kokanee Lane in Wood Village. During the search warrant, detectives arrested 56-year-old Iosif Blashishen.

Detectives booked Blashishen into the Multnomah County Detention Center on 142 charges, including:

  • Six counts of first-degree sexual abuse
  • One count of first-degree rape
  • One count of first-degree sodomy
  • Sixty-seven (67) counts of first-degree encouraging child sexual abuse
  • Sixty-seven (67) counts of using a child in the display of sexually explicit conduct.

Detectives believe there may be additional victims and are asking anyone with information to contact Detective Dylan Lerch (dylan.lerch@mcso.us) or Detective Jonathan Zwick (Jonathan.zwick@mcso.us).

In accordance with ORS 133.870, MCSO is releasing Blashishen’s booking photo to the public to aid in the identification of potential victims and additional criminal activity.

Charges are only allegations, and every arrested person is presumed innocent unless and until proven guilty beyond a reasonable doubt.

The information contained in this news release is based on a preliminary review of the details available to the Multnomah County Sheriff’s Office. As the investigation progresses, information may change.

###

MCSO Detectives Seeking Community Tips Related To Child Sexual Abuse Investigation (Photo) - 10/17/25

MULTNOMAH COUNTY, Ore. – Detectives with the Multnomah County Sheriff’s Office (MCSO) have arrested a 56-year-old man on more than 140 charges as part of an investigation into alleged crimes against children.

On Monday, October 6, 2025, MCSO detectives assigned to the Internet Crimes Against Children (ICAC) Task Force received information from the National Center for Missing & Exploited Children (NCMEC) detailing historical and recent sexual abuse of minor children and the dissemination of child sexual abuse material (CSAM) from a residence in Wood Village, Oregon.

On Thursday, October 16, 2025, detectives executed a court-authorized search warrant at the home, located near Northeast Pike Street and Northeast Kokanee Lane in Wood Village. During the search warrant, detectives arrested 56-year-old Iosif Blashishen.

Detectives booked Blashishen into the Multnomah County Detention Center on 142 charges, including:

  • Six counts of first-degree sexual abuse
  • One count of first-degree rape
  • One count of first-degree sodomy
  • Sixty-seven (67) counts of first-degree encouraging child sexual abuse
  • Sixty-seven (67) counts of using a child in the display of sexually explicit conduct.

Detectives believe there may be additional victims and are asking anyone with information to contact Detective Dylan Lerch (dylan.lerch@mcso.us) or Detective Jonathan Zwick (Jonathan.zwick@mcso.us).

In accordance with ORS 133.870, MCSO is releasing Blashishen’s booking photo to the public to aid in the identification of potential victims and additional criminal activity.

Charges are only allegations, and every arrested person is presumed innocent unless and until proven guilty beyond a reasonable doubt.

The information contained in this news release is based on a preliminary review of the details available to the Multnomah County Sheriff’s Office. As the investigation progresses, information may change.

###

MCSO Warns Community About “Smishing” Text Message Scams (Photo) - 10/16/25

MULTNOMAH COUNTY, Ore. – The Multnomah County Sheriff’s Office (MCSO) is warning community members to be aware of “smishing” text messaging scams.

  

According to cybersecurity experts, smishing scams utilize fake text messages to trick people into downloading malware, sharing sensitive information, or providing money to cybercriminals.

  

These text messages may appear innocuous at first. Often, they look like a message sent to the wrong person.

However, in reality, they are part of a widespread scam campaign. Scammers will send out thousands of these texts to random phone numbers, hoping someone will reply.

If you respond, scammers can confirm that your phone number is active and that they’ve reached a real person.

  

From there, they often continue messaging to build trust and legitimacy, ultimately seeking to steal personal or financial information.

Recent examples of text messages sent to MCSO employees include: 

  • “You have a package waiting for delivery, please click here to confirm receipt.” 
  • “Are you still at your workplace?” 
  • “Can I speak with you for a moment?” 
  • “Hi, we missed you at last night’s event.”  
  • “Hello.” 
  • “We’d like to connect with you about your current role.” 
  • “Text me when you’re free, okay.”  

How to protect yourself: 

  • Don’t reply to unknown or suspicious text messages. It’s not rude to protect yourself. 
  • Block and report unknown and suspicious phone numbers as junk or spam on your phone. 
  • Never share personal or financial information by text – especially with someone you don’t know. 
  • Never click on a link sent via text from a number or person you do not know.  

MCSO reminds everyone that staying alert and skeptical of unexpected messages is one of the best ways to protect your privacy and financial security. 

Several examples of smishing text messages are being provided. Media may use these graphics with credit to the Multnomah County Sheriff’s Office.

MCSO Warns Community About “Smishing” Text Message Scams (Photo) - 10/16/25

MULTNOMAH COUNTY, Ore. – The Multnomah County Sheriff’s Office (MCSO) is warning community members to be aware of “smishing” text messaging scams.

  

According to cybersecurity experts, smishing scams utilize fake text messages to trick people into downloading malware, sharing sensitive information, or providing money to cybercriminals.

  

These text messages may appear innocuous at first. Often, they look like a message sent to the wrong person.

However, in reality, they are part of a widespread scam campaign. Scammers will send out thousands of these texts to random phone numbers, hoping someone will reply.

If you respond, scammers can confirm that your phone number is active and that they’ve reached a real person.

  

From there, they often continue messaging to build trust and legitimacy, ultimately seeking to steal personal or financial information.

Recent examples of text messages sent to MCSO employees include: 

  • “You have a package waiting for delivery, please click here to confirm receipt.” 
  • “Are you still at your workplace?” 
  • “Can I speak with you for a moment?” 
  • “Hi, we missed you at last night’s event.”  
  • “Hello.” 
  • “We’d like to connect with you about your current role.” 
  • “Text me when you’re free, okay.”  

How to protect yourself: 

  • Don’t reply to unknown or suspicious text messages. It’s not rude to protect yourself. 
  • Block and report unknown and suspicious phone numbers as junk or spam on your phone. 
  • Never share personal or financial information by text – especially with someone you don’t know. 
  • Never click on a link sent via text from a number or person you do not know.  

MCSO reminds everyone that staying alert and skeptical of unexpected messages is one of the best ways to protect your privacy and financial security. 

Several examples of smishing text messages are being provided. Media may use these graphics with credit to the Multnomah County Sheriff’s Office.

Transit Police Arrest 28 People During High-Visibility Public Safety Mission (Photo) - 10/13/25

MULTNOMAH COUNTY, Ore. – The Transit Police recently conducted a high-visibility public safety mission, resulting in 28 arrests in the Hazelwood neighborhood.

On Thursday, October 9, 2025, over 20 officers and deputies from the Multnomah County Sheriff’s Office (MCSO), Portland Police Bureau (PPB) and the Port of Portland Police Department, teamed up to address crime occurring on or around TriMet platforms and bus stops. The seven-hour operation focused primarily on Northeast 122nd Avenue between Northeast Halsey and Southeast Division.

 

The collaborative effort focused on violent crime, criminal mischief, drug use and distribution, harassment, disorderly conduct, and other frequently reported crimes.

 

Law enforcement participating in the operation was supported by a tactical dispatcher assigned to the Bureau of Emergency Communications (BOEC) and specialty-trained PPB narcotics investigators.

 

To ensure deputies and officers could remain focused on their field operations, MCSO Corrections Division personnel established a temporary booking facility at PPB’s East Precinct. This streamlined the booking process, maximizing the time deputies and officers could spend patrolling and addressing public safety concerns on the transit lines during the mission.

 

The statistics below reflect the dedicated efforts of the officers and deputies who took part in this mission: 

  • 28 arrests 

  • Numerous charges related to the delivery and possession of fentanyl 

  • Numerous charges related to the delivery and possession of methamphetamine 

  • Numerous felony and misdemeanor warrants cleared 

  • Five vehicles towed 

  • One stolen vehicle recovered 

 

During the mission, deputies and officers came across a man using drugs across the street from a pediatric clinic at the corner of Northeast 122nd Avenue and Northeast Oregon Street.

 

While investigating, the man became unresponsive, although he was still breathing. Recognizing the signs of a potential overdose, deputies and officers administered Naloxone and requested an ambulance.

 

AMR and Portland Fire & Rescue (PF&R) responded and took the man to a hospital.

  

Throughout the mission, several neighbors and business owners expressed their gratitude for the increased presence of officers. One of the employees at the pediatric office near where the potential overdose occurred told officers it was a relief to see the recurring public safety issues addressed and thanked them for coming.

 

"There’s no doubt the mission’s collaborative approach amplified its impact," said MCSO Captain Matt Jordan, Chief of Transit Police. "Our deputies and partner agency’s officers work tirelessly to enhance safety daily and concentrated missions like these go a long way in deterring future crimes by reminding criminals that we have the resources to hold them accountable.”

 

Several photos from the operation are being released. Media may use these photos with credit to the Multnomah County Sheriff’s Office.

  

Transit Police will continue to monitor and quickly address crime patterns along TriMet’s system. Expanding enforcement and intervention efforts enhances the safety and well-being of our communities and improves rider and operator experiences.

 

About Transit Police:  

The Multnomah County Sheriff’s Office (MCSO) leads the multi-agency Transit Police Unit. Transit Police officers and deputies ensure a safe transit system by riding trains and buses, and visiting platforms and stations. They respond to calls for service and investigate crimes that occur on TriMet property in Multnomah, Washington and Clackamas Counties.

Transit Police Arrest 28 People During High-Visibility Public Safety Mission (Photo) - 10/13/25

MULTNOMAH COUNTY, Ore. – The Transit Police recently conducted a high-visibility public safety mission, resulting in 28 arrests in the Hazelwood neighborhood.

On Thursday, October 9, 2025, over 20 officers and deputies from the Multnomah County Sheriff’s Office (MCSO), Portland Police Bureau (PPB) and the Port of Portland Police Department, teamed up to address crime occurring on or around TriMet platforms and bus stops. The seven-hour operation focused primarily on Northeast 122nd Avenue between Northeast Halsey and Southeast Division.

 

The collaborative effort focused on violent crime, criminal mischief, drug use and distribution, harassment, disorderly conduct, and other frequently reported crimes.

 

Law enforcement participating in the operation was supported by a tactical dispatcher assigned to the Bureau of Emergency Communications (BOEC) and specialty-trained PPB narcotics investigators.

 

To ensure deputies and officers could remain focused on their field operations, MCSO Corrections Division personnel established a temporary booking facility at PPB’s East Precinct. This streamlined the booking process, maximizing the time deputies and officers could spend patrolling and addressing public safety concerns on the transit lines during the mission.

 

The statistics below reflect the dedicated efforts of the officers and deputies who took part in this mission: 

  • 28 arrests 

  • Numerous charges related to the delivery and possession of fentanyl 

  • Numerous charges related to the delivery and possession of methamphetamine 

  • Numerous felony and misdemeanor warrants cleared 

  • Five vehicles towed 

  • One stolen vehicle recovered 

 

During the mission, deputies and officers came across a man using drugs across the street from a pediatric clinic at the corner of Northeast 122nd Avenue and Northeast Oregon Street.

 

While investigating, the man became unresponsive, although he was still breathing. Recognizing the signs of a potential overdose, deputies and officers administered Naloxone and requested an ambulance.

 

AMR and Portland Fire & Rescue (PF&R) responded and took the man to a hospital.

  

Throughout the mission, several neighbors and business owners expressed their gratitude for the increased presence of officers. One of the employees at the pediatric office near where the potential overdose occurred told officers it was a relief to see the recurring public safety issues addressed and thanked them for coming.

 

"There’s no doubt the mission’s collaborative approach amplified its impact," said MCSO Captain Matt Jordan, Chief of Transit Police. "Our deputies and partner agency’s officers work tirelessly to enhance safety daily and concentrated missions like these go a long way in deterring future crimes by reminding criminals that we have the resources to hold them accountable.”

 

Several photos from the operation are being released. Media may use these photos with credit to the Multnomah County Sheriff’s Office.

  

Transit Police will continue to monitor and quickly address crime patterns along TriMet’s system. Expanding enforcement and intervention efforts enhances the safety and well-being of our communities and improves rider and operator experiences.

 

About Transit Police:  

The Multnomah County Sheriff’s Office (MCSO) leads the multi-agency Transit Police Unit. Transit Police officers and deputies ensure a safe transit system by riding trains and buses, and visiting platforms and stations. They respond to calls for service and investigate crimes that occur on TriMet property in Multnomah, Washington and Clackamas Counties.