Was Timothy Leary in prison with Charlie Manson?

 

Yes, Timothy Leary and Charles Manson were housed in adjacent cells in solitary confinement at 

Folsom State Prison

 In California during a period of Leary's incarceration in the 1970s. Although they couldn't see each other, they reportedly spoke frequently through their cell walls. 

The conversations reportedly included discussions about their philosophies and interpretations of events from the 1960s. Manson allegedly expressed surprise that Leary gave people LSD without attempting to control them. According to one account, Manson told Leary, "They took you off the streets so that I could continue with your work". On May 19, 1969, the Supreme Court in Leary v. United States declared the Marijuana Tax Act unconstitutional and overturned his 1965 conviction. (Unclear if Leary was in jail for 4 years or had been released on an appeal bond.)

After declaring his candidacy for governor of California in 1970, Leary was arrested on marijuana possession charges and received a decade-long jail sentence. He broke free from prison with outside help several months later and traveled abroad before being recaptured in Afghanistan in 1973. He was re-imprisoned and was ultimately released by state governmental decree in 1976. — Timothy Leary