Multnomah Co. Sheriff's Office
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News Releases
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Joint Operation Safer Multnomah nets arrests of wanted suspects, guns and drugs (photos & video available) (Photo) - 06/16/22

Video available: Watch Multnomah County Sheriff’s Office Special Investigation Unit Sergeant Matt Ferguson process firearms and drugs seized during the missions by clicking here.

Photos available: View photos and additional video footage by clicking here.

A five-day long, joint public safety mission resulted in two dozen arrests of wanted fugitives and significant weapons and drug seizures in the Portland metro area.

The Multnomah County Sheriff’s Office partnered with the United States Marshals Service, and many other local, state and federal law enforcement agencies, as part of its ongoing enhanced public safety strategy to reduce community violence.

The US Marshals Service led mission, named Operation Safer Multnomah, focused on reducing violence by targeting fugitives involved in criminal activity that have directly led to the increase in violent crime, such as murder, attempted murder, armed robbery, assaults and gun and drug trafficking.

“By pooling our resources, we can remove offenders who have shown the highest propensity of violence and disregard for human life, and hold them accountable for the crimes they have committed,” Sheriff Mike Reese said in a statement published by the US Marshals Service Thursday. “We are dedicated to creating safe and thriving communities for everyone, and collaborative missions such as this, is one way to reach our collective goal.”

Operation Safer Multnomah statistics:

  • 24 fugitives arrested: 3 wanted for attempt murder by shooting, 1 pending a federal drug overdose death, 3 pending federal prosecution for possession of firearms and narcotics.
  • 21 firearms: 9 reported stolen, 3 ghost guns, 1 silencer seized (homemade)
  • 3 pounds of methamphetamine
  • 19 grams of heroin
  • 449 fentanyl pills 

Notable Arrests:

Jimmy Pearce, age 35, was wanted by the Washington County Sheriff's Office as a suspect in a 2017 homicide that occurred at the Xpose Club, located at 10270 SW Canyon Road in Beaverton, Oregon. He was located near SE Bush Street and SE 112 Avenue in Portland and was arrested without incident. Warrants include Murder in the Second Degree, Unlawful Use of a Weapon and Felon in Possession of a Firearm.

Andrey Mazur, age 32, was wanted for more than 36 armed robberies throughout the Portland and Vancouver, Washington metro area. With the assistance of Portland Police Special Emergency Response Team, Mr. Mazur was safely taken into custody after an hours-long standoff. During the standoff, Mr. Mazur cut his hair to change his appearance. A handgun recovered in the lawn outside of the Jantzen Beach residence is alleged to have been thrown by Mazur. Mazur is a convicted felon.

Alexander Barber, age 27, was wanted for federal charges stemming from the theft of more than 35 firearms from a licensed dealer, in addition to a charge of felon in possession of a firearm. Mr. Barber was arrested after being located hiding in the attic of a Portland residence. During the operation, law enforcement was able to locate and recover eight of the stolen firearms in this case through search warrants.

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Deputies investigate fatal motorcycle crash in Fairview (Photo) - 06/14/22

On Monday, June 13, at 9:20 p.m., Multnomah County sheriff’s deputies responded to a report of a crash involving a midsize SUV and motorcycle on NE Fairview Parkway near the entrance of the onramp to I-84 westbound.

The initial investigation shows the motorcyclist was traveling northbound on NE Fairview Parkway when it collided with the SUV as it was making a left turn to the I-84 westbound on ramp. When deputies arrived, they began life saving efforts, but the injuries were too severe, and the motorcyclist was pronounced dead on scene.  

Due to the severity of the crash, the East County Vehicular Crimes Team (VCT) responded to perform the crash investigation.

Based on the preliminary investigation, VCT members believe the speed of the motorcycle was a factor in the crash. The driver of the SUV showed no signs of impairment and is cooperating with the investigation.

The motorcyclist is identified as 24-year-old Maksim Mishuk.

The investigation is ongoing. No further information will be released at this time.

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The East County Vehicular Crimes Team consists of specially trained law enforcement members from the Multnomah County Sheriff’s Office, Gresham Police Department and Multnomah County District Attorney’s Office. VCT is responsible for investigating serious and fatal vehicle crashes and crimes in Gresham, Fairview, Maywood Park, Troutdale, Wood Village and unincorporated Multnomah County.

Attached Media Files: fairview_parkway_crash.jpg
Adult in custody death investigation update - 06/09/22

Update on June 9, 2022:

The Multnomah County Medical Examiner informed the Multnomah County Sheriff’s Office (MCSO) that next of kin notifications were completed on Thursday, June 9. The deceased individual is identified as 36-year-old Jess Rivas-Castillo.

An autopsy was completed, and cause and manner of death are undetermined, pending toxicology.

Per standard protocol for all in-custody deaths, the MCSO Detectives Unit was assigned to perform the death investigation. The investigation is ongoing. No further comment is available at this time.


Original release posted on May 9, 2022:

On Monday, May 9, 2022, around 10:20 a.m., an adult in custody (AIC), who had been recently booked into the Multnomah County Detention Center, was found unresponsive in the facility’s booking area. Medical personnel and corrections deputies immediately began providing lifesaving aid.

Paramedics transported the AIC to a local hospital, where they were later pronounced deceased. The Multnomah County Sheriff’s Office has opened a death investigation.

The name of the AIC is not being released, pending next of kin notification. No further comment will be made at this time.

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33 arrested, 116 traffic stops performed during Enhanced Public Safety Initiative missions (Photo) - 06/09/22

On Sunday, June 5, Multnomah County sheriff’s deputies and Gresham Police officers performed a joint traffic enforcement mission to reduce reckless and impaired driving, and locate and recover stolen vehicles.

In total, during Sunday night’s mission, deputies and officers made 51 traffic stops. Eight people were arrested and two stolen cars were recovered. One gun was seized.

In response to the county’s dramatic rise in violent crimes, the Multnomah County Sheriff’s Office, along with our public safety partners, has implemented data-driven violence reductions strategies. One solution is performing patrol missions in hot-spot areas where traffic-related fatalities and gun violence intersect.

Since these efforts began in mid-April, these missions have resulted in 116 traffic stops, 33 arrests, and 7 recovered stolen vehicles.

“These focused enforcement missions tackle immediate public safety issues,” Sheriff Mike Reese said, “by preventing, deterring and interrupting criminal activity, helping crime victims recover stolen property, and potentially saving lives by removing unsafe and impaired drivers and firearms from our East County communities.”

We want to thank the Gresham Police Department and Portland Police Bureau Air Support Unit for their assistance with these missions.

Attached photos are from Sunday night’s mission.

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Today marks 12-years since the disappearance of Kyron Horman, age-progressed image provided (Photo) - 06/04/22

Today marks the 12-year anniversary of the disappearance of Kyron Horman. Kyron was last seen at Skyline Elementary School in Portland, Oregon, on June 4, 2010. He was seen attending his school’s science fair; he has not been seen or heard from since. At the time, he was seven-years-old.

Kyron was wearing a black t-shirt with "CSI" in green letters and a hand-print graphic on the day he disappeared. He was also wearing black cargo pants, white socks and black Sketchers sneakers with orange trim. Kyron may have had his glasses on at the time of his disappearance.

Kyron has brown hair, blue eyes, and wears glasses. He also has a distinct V-shaped strawberry birthmark on his forehead.

DNA standards from Kyron’s family and his toothbrush have been submitted and are actively being searched against the national DNA database. Dental characteristics and X-rays have also been uploaded into the National Missing and Unidentified Persons system for comparison to unidentified remains throughout the United States.

Kyron's disappearance continues to have a profound impact on our community. We remain just as dedicated to this investigation as we did twelve years ago. In collaboration with our Major Crimes Team partners, the Multnomah County District Attorney's Office and the FBI, we are pursuing all investigative leads and will continue to do so until Kyron is located. This case remains open and active.

The National Center for Missing & Exploited Children (NCMEC) is providing an age-progressed image of Kyron, to 19 years old. Also available is a video produced by NCMEC for download. NCMEC encourages the public to share the image and video in their communities and social media platforms.

A $50,000 reward is available for information leading to the resolution of Kyron’s disappearance. You can help us by sharing information pertaining to Kyron's disappearance by calling the MCSO TipLine at (503) 988-0560 or NCMEC TipLine at 1-800-THE-LOST.

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Deputies catch man after he took a joyride in a stolen boat (Photo) - 06/03/22

A 25-year-old man was arrested by deputies after taking a joy ride in a stolen boat Thursday night near Chinook Landing in Fairview.

Around 8 p.m., sheriff’s deputies received a report that the man, who was accompanied by two people, had launched a stolen boat and was driving toward the main channel in the Columbia River.

Multnomah County Sheriff’s Office (MCSO) sheriff’s deputies responded, as did the Portland Police Bureau (PPB) Air Support Unit, which was able to locate and track the boat’s travel. The Air Support Unit relayed information to deputies that the operator appeared to be joyriding in the Columbia River. Shortly after, the boat appeared to be returning to the dock at Chinook Landing. Deputies crafted a plan to remain out of sight until the operator docked the boat. Deputies coordinated a response to approach the operator and two passengers by blocking potential escape routes on the water and by land.

All three individuals were detained without incident. The operator was identified as Andrew M. Belsher, 25.

Belsher was issued a criminal citation for Unauthorized Use of a Motor Vehicle. It is possible additional charges are added at a later date. The two passengers were not charged with a crime and released.

The registered owner of the boat and boat trailer met deputies at Chinook Landing. The owner stated they said their boat and trailer were stolen from the Jantzen Beach area on Monday, May 30. They spotted their stolen property being towed near NE 111th Avenue and NE Marine Drive. The owner stated they called the non-emergency line and spent more than an hour on hold waiting to speak with a dispatcher.

The owner examined their property and reported no damage to deputies. The pickup truck used to pull the boat was towed and is suspected to be an unreported stolen vehicle.

The Multnomah County Sheriff's Office wants to thank the Portland Police Bureau for their assistance on this call for service.

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National Gun Violence Awareness Day message from Sheriff Mike Reese (video available) (Photo) - 06/03/22

On National Gun Violence Awareness Day, Multnomah County Sheriff Mike Reese is demanding action to end gun violence. In the wake of a number of tragedies, the fight to end gun violence has never been more urgent.

“As a 30 year public safety professional, a responsible gun owner, and a husband and a father, I am calling for action: to raise the minimum age to purchase assault weapons from 18 to 21, ban high capacity magazines, expand background checks to the national level, and implement extreme risk protective orders,” Sheriff Mike Reese said Friday, June 3, in a video statement. “But, gun violence can’t be stopped by only legislation or law enforcement, it will take all of us, working together, to create safe and thriving communities.”

The Multnomah County Sheriff’s Office has implemented a number of strategies to reduce gun violence and reckless and impaired driving in East Multnomah County. Learn more about the violence reduction initiatives here, (video and b-roll available).