Charles Manson's Hollywood
I've been digging in lately to a pretty fascinating and extensive podcast called "You Must Remember This", dedicated to Hollywood in the early-mid 20th century. There's all sorts of interesting investigations and discussions there but to the point, there is an extensive production around Charles Manson and the Family.
There are about 11 episodes dedicated to discussing all aspects of Manson's crime, his intersection with various Hollywood players, the trial, after the trial, Roman Polanski, etc, etc.
http://www.youmustrememberthispodcast.com/episodes/?category=CharlesManson%27sHollywood
It makes for interesting background noise while you're working.