I rooted for Earle - if you like it or not!
Yeah he was a criminal, did time and was pardoned and picked up where he left off.
I often look at this film from the perspective that he was stuck in a syndrome and there was no way out.
He shoots the security guard during the commission of the robbery and is a hunted man thanks to Mendez's squealing. He gets double crossed by Mac's goon, Jake and shoots from self defense...You just can't win!
He was a decent person in the wrong place at the wrong time.
Call Roy what you will but I still root for him even though you know where he's going.
I think of "Pard", in reality Bogey's real life pet "Zero". Let's face it, that little bastard (script-wise) was a Jonah and spelled doom for everyone that befriended him. "Pard", was that an in side gag by the writers indirectly referring to Roy's PARDon from the big house? Hell, we'll never know.
"Mad Dog" my ass, Roy is my hero in this film and I always hope that in an alternate reality he gets away and dumps the mutt!So there!