Who killed Robin's parents?
Approved answer
Who Killed Robin's Parents?
The youngest member of the acrobatic troupe called the Flying Graysons, Grayson witnesses the murder of his parents by the mafia leader Tony Zucco, who seeks to extort money from the circus that employed them. Following this tragedy, Bruce Wayne takes Grayson into his care as a legal ward and trains him to become his partner, Robin.