Across the web, fans were shocked and outraged at the end of Season 2 of Boardwalk Empire when Terence Winter decided to kill off the James Darmody character.
After that fateful night, Mr. Winter told fans that it was a "fait accompli". Things were reaching a boiling point, Jimmy had double-crossed Nucky, and death was a logical conclusion for this character.
For me, Season 3 Episode 1 puts the first two seasons into sharp relief. During the first two seasons, the young gangsters (Nucky included) were just getting warmed up. They were just getting accustomed to their power and the money that comes with the bootlegging racket.
On the other hand, everybody becomes full-fledged gangsters in Season 3. Nucky is more powerful and wealthier "than God" and he won't hesitate to execute a rival.
Does the Gyp Rosetti character (full-fledged gangster, loose cannon type) typify Season 3 just as the James Darmody character (newly minted gangster) typified 1 and 2?