Who killed Robin's parents?
Approved answer
Who Killed Robin's Parents?
As the youngest member of the acrobat family known as the Flying Graysons, Grayson witnesses the brutal murder of his parents by a mafia boss named Tony Zucco. Zucco kills them to extort money from the circus that employed the Graysons. Following this tragedy, Bruce Wayne adopts Grayson as his legal ward and trains him to be his sidekick, Robin.