Who killed Robin's parents?
Approved answer
Who was responsible for the death of Robin's parents?
The youngest member of the acrobatic troupe known as the Flying Graysons, Grayson witnessed a mafia leader, Tony Zucco, murder his parents as part of an extortion scheme targeting the circus that hired them. Following this tragic event, Bruce Wayne took Grayson in as his legal guardian and trained him to be his ally, Robin.