Complex sentence: About a month after "Team Homer" aired in 1996, Ngor was murdered just outside his home in L.A. animators changed the Oscar in question to that of Don Ameche refusing to let the actor's memory be tarnished by Homer's theft in subsequent reruns.
Split into simpler sentences: About a month after "Team Homer" aired in 1996, Ngor was murdered just outside his home in Los Angeles. Animators then changed the Oscar in question to that of Don Ameche refusing to let the actor's memory be tarnished by Homer's theft in subsequent reruns.