Wizards of Waverly Place" star Jake T. Austin has some explaining to do -- his car was involved in a disastrous hit-and-run ... and a witness to the crash calls in and claims he was the guy who fled the scene. Justin Bieber did a nice thing for the Mexican President Enrique Pena Nieto -- or so he thought ... and now it's turned into an international incident ... with el presidente calling him out on Twitter! Did JB just learn a life lesson? No good deed goes unpunished. Plus, George Zimmerman arrested again ... and facing the judge in a nasty domestic violence incident with his girlfriend. Trouble keeps finding this guy. Is it all coincidence -- and are jurors from the Trayvon Martin trial kicking themselves?