Kyron Richard Horman (born September 9, 2002) is an American boy who disappeared from Skyline Elementary School in Portland, Oregon, on June 4, 2010, after attending a science fair. Local and state police, along with the FBI, conducted an exhaustive search for Horman and launched a criminal investigation but have not uncovered any significant information regarding the child's whereabouts. His disappearance sparked the largest criminal investigation in Oregon history.