Updated

Authorities charged a 60-year-old man with first-degree murder Thursday in the slaying of a Wayne State University police officer near campus, the third officer the man is accused of shooting in Detroit.

Wayne County Prosecutor Kym Worthy said Raymond Durham was charged with the murder of officer Collin Rose on Nov. 22. Rose was shot in the head in a west side neighborhood a few blocks from Wayne State while investigating possible thefts of navigation systems from cars. Before the shooting, Rose radioed in that he was about to speak to someone on a bike. He died the next day. Police Chief James Craig had said that DNA evidence linked Durham to the Rose shooting.

Durham was charged in March with attempted murder of two Detroit police officers who were shot when they stopped him. They survived. In May, Durham was found incompetent to stand trial in those shootings, which are not related to the slaying of Rose.

Durham wasn't the first suspect in Rose's death. Worthy in December dropped a murder charge against another man.

Family members have said that Durham lived in an abandoned house and repaired bikes. His defense attorney, Gabi (GAH'-bee) Silver, has said that Durham appeared "to be somewhat delusional."