William Trickett Smith II (or Jr.) (born c. 1981) is a U.S. citizen from Paxtang, Pennsylvania who pleaded guilty to killing his Peruvian wife, Jana Claudia Gómez Menéndez de Smith of Trujillo, Peru. Gómez Menéndez was reported missing and was found in a suitcase that washed up on a beach near the capital city of Lima the day after the 2007 Peru earthquake. Her body was identified by a tattoo of a butterfly on her neck. The homicide investigation became known in Peru as "The Mystery of the Butterfly".