George Zimmerman, who was acquitted of murder after fatally shooting the unarmed African-American teenager Trayvon Martin in 2012, has suffered minor injuries after police say he was shot at while driving in Central Florida. Zimmerman was struck by flying glass and debris, not by a bullet. The man accused of shooting at him was involved in a previous encounter with Zimmerman last year, when he said Zimmerman threatened to kill him and asked him, “Do you know who I am?” Zimmerman has had repeated run-ins with police since his acquittal, including two arrests on allegations of domestic violence.