Charlie was, and is, a completely institutionalized nut case. He would have eventually ended up in the joint again regardless of the circumstances. He is where he belongs. Still, I don't know how they got him for any of the murders since he wasn't there. He filled some stupid Wannabe hippies head with shit and they acted on it.
Have a look at this site for the ramblings of the next Squeaky Fromme:
Release Charles Manson Now: The Release Charles Manson Now Project