I believe my ex was a victim of MKUltra
He was two different people. One person was amazing, kind, & tenderhearted. The other was a right bastard. Evil drug addict.
He spent several weeks in a psych hospital in the 80s, cut off from family. He has become bitter over that incident. Before that he was only using pot occassionaly with his friends (he was 15). After he used regularly and then went to crack cocaine.
His mother refuses to believe he was brainwashed. I am convinced.