obsession with the beatles helter skelter. >> they wanted to have a worldwide revolution. blacks against whites. >> reporter: aiming to launch the fabricated war, manson directed his disillusioned clan to kill. august 9th, 1969, four manson followers invaded the hollywood hills home of actress sharon tate where they massacred five people. the 26-year-old starlet was eight and a half months pregnant. the next night they murdered a couple. lee know and rosemary labianca. at both homes they left behind shocking murder scenes. >> when the words helter skelter are printed in blood at the murder scene, that was tantamount to manson's fingerprints being found. >> reporter: after a high-profile trial, manson and four followers were convicted of nine murders and sentenced to death in 1971, which was do