Who kills Jabba the Hut?

Answer 1

Jabba the Hutt was killed by Princess Leia Organa, one of the key leaders in the Rebellion and, for an unknown (but likely several-day) period, his former slave. She used the very same chain he used to bind her to his throne (and repeatedly yank her half-naked body up against his slimy bulk) to kill him, wrapping it round his flabby throat and pulling with all her might until he was choked to his death.