About this "The Simpsons" episode:

The Simpsons - Who Shot Mr. Burns? (Part Two) is the 1st episode of season 7 and number 129 overall in the series.
In the previous episode, Mr. Burns was shot by an unknown gunman. Waylon Smithers believes he may have shot Burns while in a drunken stupor, and turns himself in. However, it is discovered that he is innocent, so the police question several other suspects and eventually discover Simpson DNA evidence on Burns. Mr. Burns himself awakens and is only able to say "Homer Simpson". The police immediately arrest Homer, but he manages to escape. Lisa investigates the clues herself and discovers vital evidence that clears Homer but at that moment he is spotted at the hospital. Lisa, Smithers, the police and many townsfolk go to Mr. Burns' hospital room where they find Homer strangling Burns. Burns is shaken out of his daze and reveals that he was really shot by Maggie Simpson. Marge apologizes for Maggie's actions and everything returns to normal.