Jason Todd (Earth-Prime)

"This can be an exciting tale to tell the grandkids around the campfire. Ha ha ha! Nice try, but nothing beats the one about the time I helped the Joker beat Robin to death with a crowbar. Holiday family classic."

- Alice and Kiki Roulette

Robin was an individual who was associated with Batman.

Death
At some point, Robin became an associate of Batman. He was later beaten to death with a crowbar by the Joker and Kiki Roulette.