Suspected Cascade Mall shooter and Oak Harbor resident Arcan Cetin was found dead in the Snohomish County jail Sunday night, according to authorities.
Cetin apparently hanged himself, according to the Skagit County Prosecutor’s Office.
The Snohomish County Sheriff’s Office reported that the 20-year-old was found unresponsive at about 6:50 p.m. Corrections personnel immediately began multiple life-saving techniques, including CPR, but the efforts were not successful.
The Snohomish County Sheriff’s Office Major Crimes Unit is investigating the incident. It was the first death in the jail since 2014. Cetin was moved to the Snohomish County jail from Skagit County March 10 at the request of his attorneys, the Skagit County Prosecutor’s Office reported.
Cetin, an Oak Harbor High School graduate, was accused of shooting five strangers to death at the women’s Macy’s store at the Burlington Mall on Sept. 23, 2016.
Cetin allegedly walked into the store carrying his father’s Ruger 10-22 rifle and opened fire. The victims were Sarai Lara, 16; Beatrice Dotson, 95, and Belinda Galde, 64, mother and daughter; Chuck Eagan, 61; and Shayla Martin, 52.
Cetin allegedly confessed to the shooting, which was captured on store surveillance cameras.