Police seek public's help

Washington County Sheriff's Office looking for missing and endangered teen.

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Washington County Sheriff's Office detectives are asking for the public's assistance locating Annieka Vaughan, 15, who ran away from her home in Aloha on Oct. 30. Detectives believe Vaughan is likely with Zachary Petersen, 23, of Pasco, Wash., who is the suspect in a sexual abuse investigation being conducted by the Benton County Sheriff's Office. Vaughan is the alleged victim in that case. Petersen also went missing on Oct. 30, which was reported to the Pasco Police Department. Prior to disappearing, Petersen called the crisis line in Washington. He is believed to be suicidal and possibly in possession of a firearm. Vaughan is described as 5-feet, 9-inches tall, 150 pounds, with brown shoulder length hair and brown eyes. Petersen is described as 5-feet, 10-inches tall, 150 pounds, with buzzed brown hair and brown eyes. Petersen is known to drive a white 1998 Ford F-250 extended cab truck bearing the Washington license plate C20874C. His last known location was in the Portland area, but detectives believe he is possibly traveling to Seaside or to Sacramento, Calif. Anyone with information on the whereabouts of Petersen or Vaughan is asked to call non-emergency dispatch at 503-629-0111.