George Zimmerman has no shame. The man acquitted in the shooting death of Trayvon Martin retweeted a photo of Martin's dead body; Twitter eventually deleted the picture, but on Monday Zimmerman went on a profane tirade defending himself on Monday afternoon. As if publicizing his already very public killing of a child weren't enough, he eventually tweeted the work and cell phone number of a man in Tennessee for reasons not readily apparent: A coworker of Micah Williams told the New York Daily News that his workplace had received "thousands of" harassing phone calls. Zimmerman shot and killed the 17-year-old Martin in February of 2012 while working as a volunteer neighborhood watchman. He was acquitted of murdering the teenager, who was carrying an iced tea and a packet of Skittles while walking to his father's house. What Zimmerman retweeted was a crime-scene photo that was presented at his trial. Zimmerman's Twitter feed has become a cesspool of racist insults and Confederate images. His Twitter photo is a Rebel flag, and earlier this summer he partnered with a Florida gun shop to sell his own Confederate-themed art as part of an anti-Muslim promotional event.