DATELINE FRIDAY SNEAK PEEK: The Summer of Manson

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Keith Morrison reports on the mind and myth of Charles Manson. The one-hour special features rarely-seen video of Manson and interviews with his former parole officer and a “Manson Family” confidant. Morrison also speaks with key players in the case including: Gregg Jakobson, former music producer; Barbara Hoyt, former Manson family member; Debra Tate, victim Sharon Tate’s sister; Anthony DiMaria, victim Jay Sebring’s nephew; Virginia Graham, key witness for the prosecution; and Manson expert and author Jeff Guinn. Airs Friday, August 4 at 10/9c on NBC.