The County Coroner’s office has identified the victim of Sunday night’s shooting in Twentynine Palms. Marine Corporal Steven Kohus, 26, was a motor transport mechanic attached to 1st Battalion, 7th Marine Regiment. The Marine accused of killing Kohus, Brock Myers, 22, is a motor transport operator with 1/7. On Sunday, about 9:20 p.m., Sheriff’s deputies went to a home in the 7300 block of Saladin Avenue where they found Kohus dead from a gunshot wound. Myers was still at the scene and arrested without incident. Brock Myers pleaded not guilty to murder in Joshua Tree Superior Court Wednesday and is being held without bail in West Valley Detention Center.