Today marks 50 years since the Altamont Festival, which became notorious for the wrong reasons.
Four people died at the festival, including one that was fatally stabbed by a member of the Hells Angels, Alan Passaro. Passaro was charged with murder but later acquitted on grounds of self defence.
Joel Selvin, author of Altamont: The Rolling Stones, the Hells Angels, and the Inside Story of Rock’s Darkest Day, explains the legacy of the disastrous concert.
Video by Cody Goodwin and Shrai Popat