Source: NY Times

Vincent T. Bugliosi, who successfully prosecuted the cult leader Charles Manson and several acolytes for the savage murders of the actress Sharon Tate and six other people in August 1969, then became a best-selling writer of true-crime books, died on Saturday in Los Angeles. He was 80.

He had been treated for cancer, his son, Vincent Jr., told The Associated Press in confirming the death.

The killings of Ms. Tate and four others in the early morning of Aug. 9, 1969, and the murders of Leno and Rosemary LaBianca early the next morning terrified people in Los Angeles and horrified the American public.

The victims were stabbed repeatedly. Some were also shot. Ms. Tate, 26, who was married to the director Roman Polanski and was eight months pregnant, begged for her life before being stabbed, one of the killers, Susan Atkins, recalled later.

Read more: http://www.nytimes.com/2015/06/10/us/vincent-t-bugliosi-manson-prosecutor-and-true-crime-author-dies-at-80.html?_r=0urce

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He wrote THE definitive book on the JFK assassination.