Please note that the Beach Boys recorded one of Manson’s songs. Dennis Wilson was a friend of Manson and introduced him to Terry Melcher, Doris Day’s son who owned a recording studio. Melcher refused to sign Manson after personally witnessing what a lunatic he was and it is thought that this caused Manson to order the horrific attack on Melcher’s house, then rented out to pedophile Roman Polanski and his wife Miss Trego of The Beverly Hillbillies, Sharon Tate. Leslie Van Houten did not take part in the Tate murders but did a day later at the LaBiancas.
The connection was the girls. Manson made money and contacts by supplying his harem of hippy chicks to parties around LA and San Francisco, particularly to parties thrown by the movers and shakers of the music industry. Melcher benefited from this arrangement in more than one way.