Washington County detectives used a cellphone ping and a license-plate camera network to track the suspect in a quintuple homicide nearly 200 miles to a small Washington state city, where he was found dead. The investigation was led from the Washington County Sheriff's Office in Hillsboro, with Hillsboro Police Department officers among more than a dozen agencies that assisted.

Enumclaw Police Chief Tim Floyd said Washington County investigators contacted his department shortly after 5 p.m. Sunday, Aug. 23, after identifying Benjamin C. Parker, 36, as the suspect in the killing of five people discovered that morning on a rural property at 47350 N.W. Otis Lane in unincorporated Washington County, according to The Oregonian. Detectives had traced Parker's phone to Enumclaw, a city of about 13,000 roughly 190 miles north of the crime scene.

Investigators believed Parker had taken a Toyota 4Runner registered to one of the victims. Enumclaw police entered the SUV's plate into their Flock camera system and found Parker had driven in and out of the city multiple times, first arriving Saturday night, Aug. 22, Floyd said. The last plate hit suggested he was likely still in town.

Patrol officers found the 4Runner parked on Dixon Road behind the Safeway market around 5:45 p.m. Because Washington County investigators warned Parker was likely armed, Enumclaw officers approached with ballistic shields and a drone. They found Parker dead inside from a suspected suicide, a small-caliber gun still in his hand, Floyd said.

As we reported Aug. 24, the Washington County Sheriff's Office confirmed Parker's death that Sunday evening. Sheriff Caprice Massey said at a press conference that detectives did not believe the killings were random.

"In my 22 years here, I have not been a part of or witnessed a scene quite this complex involving this type of an investigation," Massey said.

The sheriff's office on Monday, Aug. 24, identified all five victims: Mary Elizabeth Kimsey, 85, of Portland; Rowan Karla Kimsey, 60, of Forest Grove; Stella Jade Kimsey, 26, of Forest Grove; Linsey Mae Haraldsen, 26, of Portland; and Alvin Raymond Chu, 27, of Portland.

Three generations of one family were among the dead.

Stella Kimsey was Parker's girlfriend and lived with him on the property. Rowan Kimsey was Stella's mother and owned the home. Mary Kimsey was Stella's grandmother. Haraldsen was Stella Kimsey's best friend, and Chu was Haraldsen's partner.

Forest Grove firefighters first responded to the property at 5:27 a.m. Saturday, Aug. 22, after a report of a vehicle fire. They found a car ablaze and discovered at least one body with a gunshot wound to the head. Firefighters backed out of the long gravel driveway to the approximately 14-acre property, surrounded by hazelnut orchards and evergreen trees, and alerted the sheriff's office.

The Washington County Major Crimes Team, an interagency detective unit, led the investigation. Hillsboro Police Department deployed a mobile command unit to the scene on Aug. 22, according to KATU. Other assisting agencies included the Oregon State Police Crime Lab, the ATF, and the Washington County Medical Examiner's Office.

The Flock camera technology that helped locate Parker in Enumclaw is also used in Washington County. The sheriff's office deployed Flock cameras at seven county locations using a $396,000 purchase funded through a district attorney's office grant, according to a November 2025 Hillsboro News-Times report. The Enumclaw system is a separate deployment.

A follow-up press conference is scheduled for Tuesday, Aug. 25, at the sheriff's office building at 215 S.W. Adams Ave. in Hillsboro. No motive has been released.

Anyone with information about the residents of the Otis Lane property or their associates can call the Washington County Sheriff's Office non-emergency line at 503-629-0111, referencing case number 50-26-11866.