I feel like he should be imprisoned, as he did try to hire hit-man to get a few people killed, but the sentence given is extremely harsh and without proper justification.
I should clarify: I mean that the crimes for which he's imprisoned were all victimless (no charges of soliciting murder were brought against him, just drug trafficking etc).
My main concern is the crimes for which he was tried and convicted (no hitmen or murder charges were mentioned in his trial AFAIK) weren't immoral, but he's still in prison for life.