The Mystery of Paolo Mele

Sylvia's tactic didn't lead to the immediate arrest of the monster, but it did stir up an intriguing new clue. Stefano Mele had confessed to killing his wife Barbara and her lover in a jealous rage. The shells collected at the crime scene were still sitting in an evidence file at police headquarters. When officers examined them they discovered that the shells all bore the same signature imprint from the monster's gun.