George Zimmerman is starting off 2015 in a familiar place: behind bars. Police in Lake Mary, Fla., arrested the 31-year-old about 10 last night when answering a call about a domestic dispute, reports News13 in Orlando and CNN. It's not entirely clear what happened, but Zimmerman is charged with aggravated assault, and some kind of weapon was involved. Since his acquittal in the Trayvon Martin case, Zimmerman has had frequent run-ins with the law, including incidents involving weapons with his then wife and a girlfriend. (More George Zimmerman stories.)