The Arizona Department of Corrections reports the death of a Mohave County convict serving a life prison sentence for a first-degree murder in Bullhead City. The agency said that Sean King, 41, died Thursday, Jan. 4, from “an act of self-harm by hanging” at the Arizona State Prison Complex-Eyman in Florence.

A news release indicated that prison staff performed initial life-saving efforts when King was discovered in an unresponsive state in his housing unit. “Responding paramedics in consultation with medical staff from Mountain Vista Medical Center pronounced King deceased,” the release said.

King began serving time following his conviction for the suspected drug-related murder of Kiera Wolf, 18, Bullhead City. Wolf suffered multiple stab wounds in her torso and her body was recovered from a desert ravine north of Black Mountain Road.