This is a proper attitude toward punishing others:

"He's a young man, only 19-years-old," Lambert said. "He has a full life ahead of him. He can recover from this and go on to become a productive citizen."

Lambert says he's forgiven the man, but wants him to seek help. "I also want to thank him. I want to thank him for putting down that gun and not forcing me take action."

I think this guy's attitude comes pretty close to how I would say that a Christian attitude toward punishing others should be. In this case, the nineteen year old came in and waved his gun after getting pissed off at Lambert, who would have been well within his moral and legal rights to shoot him if he didn't stop waving the gun. After all, it would be irresponsible for him to not shoot a crazed guy with a gun who refused to put the gun down, since the lunatic might shoot some innocent person with it. There are a few qualities about how he handled it that are important:

• A controlled willingness to use force--including deadly force--to save lives from possibly imminent violence.
• He gave the teenager the option to peacefully surrender without harm.
• He takes no pleasure in having to possibly punish someone for a violent crime.
• He hopes to see the teenager turn his life around.

This is my primary beef with groups like "Perverted Justice" and others. They care more about punishing someone than making them right again. There is nothing noble in that, nothing honorable and worthy of being followed. That is just revenge plain and simple.