Batman: Under the Red Hood

Summary: Ra's al Ghul hires the Joker to help him with his latest terrorist scheme, but soon regrets it when the Clown Prince of Crime kidnaps Jason Todd, the second Robin. In a warehouse in Sarajevo, Bosnia, the Joker beats Jason with a crowbar, ultimately leaving him half-dead on the warehouse floor. Jason tries to get out, but the Joker put a lock on the door. He then sees a bomb ticking in the warehouse. Batman arrives too late, and Jason is killed in the explosion.

Five years later, in Gotham City, the vigilante/crime lord Red Hood has assembled a meeting with the city's top-earning thugs and dealers. The Red Hood announces his takeover of the drug trade and tells them to give him 40 percent of their earnings in return for protection from Batman and Black Mask. As a warning, he tosses them a bag containing the severed heads of all their lieutenants.