Charles Manson Denied Parole

California prison officials on Wednesday denied Charles Manson parole for the twelfth time.

The Associated Press reports that the 77-year-old serial killer, who was convicted along with his friends for the murder of nine people in 1969, did not attend the hearing. He is now expected to spend the remainder of his life in prison.

Debra Tate, sister of slain actress Sharon Tate, spoke on behalf of the victims as she has for past parole hearings. "I've tried to take this thing that I do, that has become my lot in life, and make it have purpose," she said. "I've been doing it for Sharon and the other victims of him for the last 40 years."

The Los Angeles Times reports that Manson was originally sentenced to death for his killing spree but a 1972 decision found the state’s death penalty law unconstitutional and his sentence was changed to life in prison with the possibility of parole. He has been staying in a separate prison unit meant for inmates who’s lives could be endangered by other inmates.

The Los Angeles County District Attorney’s office said it has previously opposed Manson’s parole and will continue to do so. An earlier Times story noted that the prisoner has not given them any reason to reconsider:

"He refused to cooperate, so the conclusion they drew from the reports is he still remains a danger to the public," Los Angeles County Deputy District Attorney Patrick Sequeira said at the time. "He was convicted of nine horrible murders. He has expressed no remorse or empathy for any of the victims."

CNN has the most recent photos of Manson from the California Department of Corrections. You can see those here.