The two-hour ABC News special, "The Family Manson,” aired on ABC.

ARCHIVAL VIDEO: Manson murders, 40 years later
ABCNews.com
Video
Mar 8, 2017, 2:26 PM
ARCHIVAL VIDEO: Manson murders, 40 years later
Charles Manson and the followers who murdered for him
Bettmann Archive/Getty Images
Slideshow
Mar 7, 2017, 10:57 AM
Charles Manson and the followers who murdered for him