How do Break up with a guy who is in Jail, and tell him I'm love with someone else?

Had a guy friend of 3 years. Knew he was in Legal trouble We were both single and liked each other. He urred me that he could handle a relationship, and I told him I would not wait for him and not be his Gopher. If I was single when he got out then we might give it a go. It was a 6 month relationship that was about him and sucked the life out of me. When I talked to him it was like he didn't understand that he was "depleting me" then I felt guilty. He was not vulger but criticle, VERY excentric and was terrible with words of affirmation. Its to the point where I am incredibly angry at him for being such a taker and would have dumped him with or with out the jail thing. Even if he got out I still don't want to be with him. I also stayed with him out of guilt. How can I break it to his family, friends nicely with out bashing him but so that they understand? Then break it to him, but making it clear that he blew it and