 Both episodes were written by Bill Oakley and Josh Weinstein ; Part One was directed by Jeffrey Lynch and Part Two by Wes Archer . Musician Tito Puente guest stars as himself in both parts . " Who Shot Mr. Burns ? " was conceived by series creator Matt Groening and the writing staff decided to turn it into a two @-@ part mystery episode . Part One contains several clues about the identity of the culprit because the writers wanted it to be solvable . 
