Free all people who have been locked up for Marijuana and possibly other drug related charges. But especially marijuana.

I have heard stories of people being jailed with things like life sentences,or any sentences at all for things like marijuana.I know there are people in trouble for other drugs but my main focus today is marijuana.I would like to point out the case of Jeff Mizanskey,a Missouri man who was sentenced unusually and cruelly to life in prison,had 20 years of his life and family stolen from him, along with these other people in trouble, and then was realeased as if the charges never happened,because they agreed that they were cruel and unusual. as if all the time he spent was a fluke, they didnt need him in there, Just one day let him go cuz he had people who care trying to point out how rediculous it was.i dont see how this can be any different for others and all related charges should be freed