The Death of a Fire Commissioner in Gotham City

A fire commissioner named Don Carmignani was beaten with a metal pipe by a gang of homeless addicts who were encamped in front of his mother's house. Now it turns out that he was accused by the defendant's lawyer, the one who assaulted him. So we don't really know what's true here of using bear spray on them first. But obviously the D.A. thought something was kind of hinky because they dropped charges against the guy who assaulting him.