Bill's major accomplishment is killing Priest Vallon, the leader of "The Dead Rabbits." Priest Vallon's son Amsterdam (Leonardo DiCaprio) grows up and vowing to avenge his father's death. Amsterdam has Bill take him under his wing so he can find the right moment to exact his revenge. As Amsterdam himself says "When you kill a king you don't stab him in the back, you wait so the whole court can watch him die."
Still, this is an impressive film. The cinematography and editing are brilliant, The music is powerful, and the sets are stunning. The violence in this film can be quite intense and at times rather unexpected. The supporting cast which includes Brendan Gleeson, Jim Broadbent, and John C. Reilly is good and while their could have been a better lead than DiCaprio, he still gives one of his better performances.
This powerful if imperfect historical piece. Watching this movie is an exhilarating experience even though drama is somewhat clichéd at times. Whatever faults the narrative has is made up its remarkable atmosphere and historical accuracy. It is not one of Scorsese's best films but if you are a fan of his work it is definitely a must watch.