Batman Issue 435

The Many Deaths of the Batman - Chapter Three: The Last Death of the Batman
While under police protection, Bruce confided to Alfred that all the dead men had been his trainers in route to becoming the Batman. Alfred ran a diversion on the cops while Bruce headed down to the cave. Another Batman was found. The real Batman deduced the killer and took him down before he could strike again - he was one of the alleged dead trying to break ties from Batman before one of his foes killed him.

Individuals

 * Batman
 * James Gordon
 * Alfred Pennyworth
 * Aurelias Boch
 * Mina Boch
 * Jerome Charles Sawyer

Locations

 * Gotham City
 * Wayne Manor
 * Batcave