Bobby Beausoleil. Lucifer Rising.

Bobby Beausoleil. AKA "Bobby Bummer" AKA "Cupid."

Convicted murderer, Manson Family member, Death Row inmate, soft-core porn actor, and former member of Arthur Lee's band The Grass Roots, which later became Love.

After being abandoned by his original choice, Kenneth Anger tapped Bobby to complete the film score for Lucifer Rising. His original choice happened to be none other than Jimmy Page who was supposedly too strung out to deliver the goods over a three year period. Beausoleil completed the recordings while in prison for the murder of Gary Hinman.

As described in the book Helter Skelter:

Beausoleil claims that Hinman supplied him with a batch of bad (or weak) mescaline that Beausoleil in turn sold to the Straight Satans motorcycle gang. When the bikers demanded their money back, Beausoleil went to Hinman, who refused to pay. Beausoleil, Atkins, and Brunner held him captive in his own home in an attempt to convince him to refund the money. Beausoleil stabbed Hinman to death the next day. Afterwards, he wrote "Political piggy" on a wall in Hinman's blood in a failed attempt to lead police to believe the murder was done by a group of radicals. On August 6, 1969, Beausoleil was arrested while stalled along side the highway in Hinman's Fiat with the Toyota engine.

Southern California in the late 60's was a seriously fucked up place. Here's a news story on Bobby about his interest in electronic music: