On October 3, 1974, two teenagers were found shot multiple times in the head in the parking lot of the Oak Hills Recreation Center in Beaverton, Oregon. Victims were 16-year-old Donald Bartron and 18-year-old Peter Zito, Jr.; both deaths remained a cold case for decades.

Investigators originally examined a seized .22 caliber handgun in 1974 but could not make a ballistic match then. That same caliber weapon was later used in 1976 to kill Sgt. Jacob Kim Brown; the shooter in that case, Steven Paul Criss, pleaded guilty and served time. In 2022 Washington County detectives submitted the cold-case ballistics to the ATF and the Oregon State Police Crime Lab confirmed a match between the 1976 and 1974 evidence. On November 2, 2022, Criss, then 65 and living in Aloha, Oregon, was arrested and later indicted on two counts of second-degree murder and is being held in the Washington County Jail.

Joseph Amir Wilson had been arrested hours after the 1974 murders and later cleared in January 1975; the Sheriff’s Office has apologized for that wrongful arrest.