Detectives: 15-year-old Aloha girl missing, could be with sex abuse suspect

Photos of Annieka Vaughan and Zachary Petersen from the Washington County Sheriff's Office

ALOHA, Ore. – Detectives are looking for a 15-year-old Aloha girl who ran away from her home and could be with the suspect in a sexual abuse case out of Benton County.

The Washington County Sheriff’s Office said they are looking for Annieka Vaughan, 15, after she ran away from her home in Aloha on October 30, 2017.

Detectives said they think she could be with 23-year-old Zachary Petersen of Pasco, WA, who was named a suspect in a sexual abuse investigation being conducted by the Benton County Sheriff’s Office. Detectives said Annieka is the alleged victim in that case.

Deputies with Benton County Sheriff's Office in Washington state say Vaughan reported being sexually assaulted by Petersen on Sept. 28. They say both Vaughan and Petersen know each other.

Petersen also disappeared on Oct. 30, as reported by the Pasco Police Department. Before leaving, deputies say he called a crisis line in Washington.

“He is believed to be suicidal and possibly in possession of a firearm,” deputies said.

Police describe Annieka as about 5-foot 9-inches tall, weighing 150 pounds, with brown shoulder-length hair and brown eyes.

Petersen is described as 5-foot 10-inches tall, about 150 pounds, with buzzed brown hair and brown eyes. She was enrolled at Aloha High School for about two weeks in October.

Petersen is known to drive a white 1998 Ford F-250 extended cab truck (similar to the photo above) with Washington license plate C20874C. Detectives said his last known location was the Portland area, but they think he could also be headed to Seaside, Oregon or Sacramento, California. Deputies alerted authorities in both cities.

If you have information on the whereabouts of either person, call the non-emergency dispatch at (503) 629-0111.

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