www.msnbc.msn.com/id... "Then, in a scene recorded by the drugstore's security camera, he went behind the counter, got another gun, and pumped five more bullets into Parker as he lay on the floor unconscious. At the trial, prosecutors argued that Ersland CROSS INTO THE WRONG when he shot the unarmed and unconscious Parker five more times. "

What is "crossed into the wrong"?
He moved from doing a righteous action (defending himself and his store) to a criminal action (pumping a few extra rounds into the robber).
I found "in the wrong" in dictionaries, but "crossed into the wrong" and its related form "into the wrong" seem a bit strange.