Sharon Tate's Sister: Is Manson Fiancee 'Deranged'? Debra Tate calls marriage 'ludicrous' By Matt Cantor, Newser User Posted Nov 19, 2014 8:58 AM CST 30 comments Comments In this June 5, 2013, photo, Debra Tate speaks about her sister, actress Sharon. (AP Photo/Nick Ut, File) (Newser) – Why a 26-year-old woman would want to marry 80-year-old Charles Manson is beyond anyone, but especially Debra Tate, the sister of slain actress Sharon Tate. She calls the engagement between Afton Elaine Burton, aka "Star," and the convicted murderer "ludicrous," the AP reports. Burton apparently thinks Manson is working to save the environment, Tate says. "I wonder how long it will take for her to figure out this is just a con," she adds. "It makes me wonder what is missing in her life that she would want to marry an 80-year-old man. Is she a victim? Is she mentally deranged?" "It's always something with him," she says. Tate and her relatives make sure to be on the scene every time a Manson follower goes up for parole, fighting to keep the cult in prison. She has also focused on battling his Internet supporters. "I didn't ask for this job or position, neither did anybody else from the survivors' families," Tate told People in August. "There's no benefit financially or mentally or emotionally. But it is what it is."