S1·E3 The Clown

A hated dictator, living in exile in Miami, is murdered during a birthday party for his son. Lt. Snedigar thinks he has an open-and-shut case against Pepe the Clown, who performed at the birthday party, but Pepe insists he was not at the party. Dave has to prove to the skeptical policeman someone else went to the party in Pepe's costume.