LOS ANGELES — Susan Atkins, a follower of cult leader Charles Manson whose remorseless witness stand confession to killing pregnant actress Sharon Tate in 1969 shocked the world, has died. She was 61 and had been suffering from brain cancer.

Atkins’ death comes less than a month after a parole board turned down the terminally ill woman’s last chance at freedom on Sept. 2. She was brought to the hearing on a gurney and slept through most of it.

California Department of Corrections spokeswoman Terry Thornton said that Atkins died late Thursday night. She had been diagnosed with brain cancer in 2008, had a leg amputated and was given only a few months to live.

She underwent brain surgery, and in her last months was paralyzed and had difficulty speaking. But she managed to speak briefly at the Sept. 2 hearing, reciting religious verse with the help of her husband, attorney James Whitehouse.

She had been transferred to a skilled nursing facility at the California Central Women’s Facility at Chowchilla exactly one year before she died.

Tate, the 26-year-old actress who appeared in the movie “Valley of the Dolls” and was the wife of famed director Roman Polanski, was one of seven murdered in two Los Angeles homes during the Manson cult’s bloody rampage in August 1969.

Atkins was the first of the convicted killers to die. Manson and three others involved in the murders — Patricia Krenwinkel, Leslie Van Houten and Charles “Tex” Watson — remain imprisoned under life sentences.

Atkins, who confessed from the witness stand during her trial, had apologized for her acts numerous times over the years. But 40 years after the murders, she learned that few had forgotten or forgiven what she and other members of the cult had done.

Debra Tate, the slain actress’s younger sister, told the parole commissioners Sept. 2 that she “will pray for (Atkins’) soul when she draws her last breath, but until then I think she should remain in this controlled situation.”

Atkins’ prosecutor, Vincent Bugliosi, had spoken out earlier in favor of release, saying the mercy requested was “minuscule” because Atkins was on her deathbed.