Joe Chill is the murderer of Bruce Wayne's parents. He is in some way connected with Intergang. There is rumour that Intergang sent him to kill them. Or it was just a coincidence.
The Murder happend at 10:45. Bruce and his parents left the cinema after watching "The sign of Zorro". Just as they entered a alleyway to get back home, Joe left the shadow, with a gun in his hands and pointing it at them. He tried taking the pearl necklaces that where one Martha's neck, but her Husband tried stoping him, but was shot dead by one bullet. Martha started to scream but to was killed by Joe. Joe contemplated about killing Bruce too, but in the end ran away, leaving Bruce alone with his dead parents' bodies, little knowing that he was the reason Batman was born.