Who killed Robin's parents?
Approved answer
Who killed Robin's parents?
As the youngest member of the acrobat troupe known as the Flying Graysons, Grayson tragically witnesses the murder of his parents at the hands of Tony Zucco, a mafia boss who aims to extort money from their circus. Following this horrific event, Bruce Wayne adopts Grayson as his ward and mentors him to become his sidekick, Robin.