LOS ANGELES (CNN) -- One of infamous killer Charles Manson's followers, Bruce Davis, is scheduled to have a California parole hearing on Wednesday, two years after parole had been granted to him but was overturned by then-Gov. Arnold Schwarzenegger, officials said.
Davis, 69, is serving a life sentence for the 1969 first-degree murders of music teacher Gary Hinman and stuntman Donald "Shorty" Shea.
In 2010, the California Department of Corrections and Rehabilitation's Board of Parole Hearing granted parole to Davis, but Schwarzenegger revoked it, said corrections spokeswoman Terry Thornton.
The parole board in 2010 said that Davis had not been disciplined since 1980 and participated in all available education, vocation and self-help programs.
In March, Manson, 77, who is serving a life sentence for nine murders and who led his family of followers in a murder spree in 1969 whose victims included eight-month's pregnant movie actress Sharon Tate, was denied parole for the 12th time.
Manson, whose gruesome killings inspired the best-selling book "Helter Skelter," will be up for parole again 15 years from now, when he would be 92.
Debra Tate, the sister of Sharon Tate, said she would attend Davis' parole hearing on Wednesday, to be held at the California Men's Colony in San Luis Obispo, where Davis is incarcerated, 193 miles northwest of downtown Los Angeles.
"The public needs to know this man is very dangerous now as he was in 1969," Tate said. She also attended Manson's parole hearing and objected to Manson's parole.
Wednesday's proceeding will mark Davis's 27th parole hearing, Thornton said.