In recent years I haven't read of any bosses doing murders themselves, but plenty of the younger administration guys have done it. Carmine Sessa personally killed a couple of guys while consigliere. Sammy Gravano was at the scene of a couple of murders while underboss/consigliere for Gotti. He claims to have never pulled the trigger in those hits, but who knows. Gaspipe did the same thing with Jimmy Hydell while consigliere.