Who killed Robin's parents?
Approved answer
Who Killed Robin's Parents?
As the youngest member of a family of acrobats called the Flying Graysons, Grayson witnesses the murder of his parents by mafia boss Tony Zucco. Zucco's aim was to extort money from the circus that employed the Graysons. Following this tragic event, Bruce Wayne adopts Grayson as his legal ward and mentors him to become his partner, Robin.