Beach Boys and Charles Manson

Everybody knows the music of the Beach Boys ,but did you know that one of their songs was actually writing by Charles Manson , yes your reading this right, turnes out the the song Never Learn Not to Love ( that was credited to Dennis Wilson) and is on Beach Boys' 15th studio album 20/20, was and is actually an altered version of "Cease to Exist", composed by aspiring folk singer-songwriter and later convicted murder-conspirator Charles Manson. Musically, Wilson deviated from Manson's blues influence, reworking it to fit the band's pop-oriented approach.Which Dennis Wilson got off of Charles Manson when they were friends.