Washington state – Arcan Cetin, the Turkish Muslim man who shot and killed 5 at a Burlington mall was discovered hanging in his jail cell Sunday evening according to Rosemary Kaholokula, chief criminal deputy prosecutor for Skagit County.

Bellingham Herald via Associated Press:

Arcan Cetin, the man charged with killing five people at a shopping mall in Burlington last September, was found dead in his jail cell in an apparent suicide, authorities said Monday.

Cetin, 20, was discovered hanging Sunday evening, said Rosemary Kaholokula, chief criminal deputy prosecutor for Skagit County.

He was being held in neighboring Snohomish County, where he was awaiting the results of a mental competency evaluation.

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The Snohomish County Sheriff’s Office, which runs the jail, said in a news release Monday that a 20-year-old inmate had been found unresponsive, and that efforts to revive the prisoner failed. The death is under investigation, the statement said.