Three Ghosts of Batman

The Three Ghosts of Batman is the fan-name given to a group of super-villains themed after Batman. The three are known respectively as Josef Muller AKA Bat-Cop, Branca AKA Bat-Bane, and Michael Washington Lane AKA the Bat-Devil.

History
The Three Ghosts of Batman were created by a collaboration between the GCPD and Doctor Hurt in an effort to replicate the Batman. As such Doctor Hurt was allowed to experiment on three GCPD officers to try and transform them into new Bat-men.

Officer Josuf Muller was an expert marksman in the GCPD who was simply given a bat-suit and a gun to become "Bat-Cop". He was half-beaten to death by the Joker thinking he was Batman only to be saved by the real Batman. Josuf proceeded to non-fatally shoot the Joker and run off, never to be seen again.

Officer Branca AKA Bat-Bane was a goodhearted family-man who agreed to be injected by venom extracted from the blood of Bane. When high on venom, Branca fell into a violent rage and murdered his own family. He was later shot by  police-officer Barelli while on a rampage.

Michael Washington Lane AKA Bat-Devil was a young police officer who Doctor Hurt wished to replicate Batman's trauma within so he murdered the family of. He was an accomplice to Doctor Hurt and the Black Glove as-well as the only Ghost of Batman to become a recurring character. He was eventually selected by the Order of St. Dumas to be the new Azrael.

Michael Lane

 * Batman: Arkham City and Batman: Arkham Knight:  Azrael (Arkhamverse)