"Road to Perdition" by Max Allan Collins

Revenge! Revolvers! Riverboat Gambling! We read our first graphic novel to learn about the form, experience a new level of storytelling, and indulge our mafia fascination. 
You can get a copy of the original comic through abebooks.com or you can read it online via a free 7-day trail at dcuniverseinfinite.com OR you can watch the stellar Sam Mendes movie to witness (*spoiler*) a balding Jude Law and Tom Hanks machine-gunning Paul Newman to death. (Best Hollywood retirement ever?)