The peculiar story from June 2007 that had Fall Out Boy's Pete Went (and his security team) beat down a heckler at Schuba's Tavern in Chicago has turned into a lawsuit. According to a report from TMZ:

Andy Kallas claims he was watching the boys perform at Schuba's Tavern in Chicago, when Wentz and his peeps beat him to a pulp for several minutes. Kallas claims he suffered "serious injuries to his head, mouth and face." The way the lawsuit reads, the attack was totally unprovoked. But here's the deal. We're told Kallas was loud, obnoxious and heckling the band before the incident. Kallas is suing both Wentz and the club for an unspecified amount in damages.

Last year, Wentz denied that the incident was malicious, claiming self–defence:

The truth is on the way out the door I had to pass directly next to the guy and I knew it, so I kept my head down and walked out. As I did, the guy reached out and grabbed me and said something I couldn't really hear -- it was a glorious use of the English language, though," he continued. "As he grabbed me, I punched him. Yell all you want at me, say whatever, but in a situation like that I will defend myself. After that, of course, it got chaotic, [but] we have several independent witnesses that gave statements saying he grabbed me first … I am not worried over the outcome, as I was clearly in the right. Anything anyone else is saying or writing is simply not true

You can find the lawsuit filing here.