Batman: The Imposter #1

Bruce Wayne's mission as the Batman has only been underway for a year or so, but he can tell he's making a difference. Unfortunately, he's made some powerful enemies. All the traditional power brokers of Gotham resent the disruption the Batman has brought to town... and it seems one of them has a plan to neutralize him. There's a second Batman haunting Gotham's rooftops and alleys — and this one has no qualms about murdering criminals, live and on tape. With the entire might of the Gotham City Police Department and Gotham's rich and powerful coming down on his head, Batman must find this imposter and somehow clear his name... but how can you prove your innocence from behind a mask?