Martha Wayne

Martha Wayne shared her husband Thomas's charitable nature, and was dedicated to her son Bruce's upbringing. She was well-regarded in Gotham City's social circles, and helped host lavish charity balls at Wayne Manor. Their tragic murder at the hands of a desperate burglar, Joe Chill, in Gotham's Crime Alley shook the city to its core, and led to years of urban blight. It also inspired their son Bruce to eventually become the Batman.

Batman: Arkham Asylum
While infected with Fear Gas while in the Medical Center morgue, Batman experiences hallucinations of both his father's and his mother's bodies lying on the morgue tables. The pair ask him why he hadn't saved them in the alley, accusing Bruce as being responsible for their deaths. Under further influence of the Scarecrow's fear toxin while in the corridors of Arkham Mansion, Batman experiences flashbacks of his parents' murder and hallucinates being back in Crime Alley as a child, listening to the police talk around him as he kneels over his parents' bodies.