Who killed Robin's parents?
Approved answer
Who Killed Robin's Parents?
The youngest member of a family of acrobats known as the Flying Graysons, Grayson witnesses the murder of his parents by the mafia boss Tony Zucco, who seeks to extort money from the circus that employed them. After this tragic event, Bruce Wayne takes Grayson in as his legal ward and trains him to become Robin, his crime-fighting partner.