While Rucka feels the Punisher is a ruthless and utterly determined character, he doesn't believe Frank Castle is psychotic. "There's a documented syndrome among snipers. You're sitting behind the scope, and then the word comes to fire and you reach out and touch somebody a thousand meters away. You don't know them and you never will and you ended their life. You get a sense of power and almost godhood from that," Rucka said. "There are documented cases of snipers who continue to just shoot even after they've taken down their target. In many ways that could be Frank, but it isn't. Why isn't it? Because a lesser person would have gone mad a long time ago and I refuse to accept that the Punisher is crazy.
"There's no point writing the Punisher if he's crazy because then you take away his ownership of everything he does," Rucka continued. "One of the things that I think is so amazing about him is that you don't really survive as a creature of vengeance after you've exacted your vengeance [Castle destroyed the crime family that murdered his love ones on an early mission] unless you're working on some other level."
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"In the last several years there have been a slew of fantastic writers on the book, and that's aside from a rather epic run that Garth Ennis did. So in their own way, the crime stories have been done from just about every angle, but to me, Frank is the vessel. He's the tank that's going to roll through the countryside. The question is, who else is going to be in the countryside and who is going to manage to get out of the way of the treads? Those to me are interesting questions," Rucka said. "Within the confines of the Marvel Universe, Frank has a certain amount of rope, and if he extends it too far then you have people with god-like powers paying attention to you. And that's a problem. It's a problem for him not so much because he's afraid of that fight, it's because that fight is going to take him off mission. If he has to deal with that stuff then he's not dealing with what he wants to be dealing with, and what he wants to deal with is killing people who need to die."
Rucka feels the best Punisher stories are ones where you meet an especially heinous target and then watch Frank Castle run that target down. For the writer's initial stories he'll introduce several new dangerous and demented characters for the Punisher to hunt. "At the start I'm less interested in dealing with the Punisher's gallery of established rogues than I am with establishing a status quo," Rucka explained. "Where I'm coming from will allow us to bring a couple of new organizations into New York and to set up some other criminal enterprises and adversarial forces that he could be facing, because frankly if you're in the mob and you're in New York you're terribly dumb. At this point you really do know how that ends."