Authorities in Multnomah County, Ore. say the last reported sighting of Kyron Horman was walking down the hall of Skyline Elementary School on June 4, 2010. Kyron and his stepmother, Terri Moulton Horman, had come to school that morning to attend a science fair. At around 8:45 a.m., Kyron left his stepmom and headed to class. However, cops say, the second grader never made it. When Kyron didn't show up at his school bus stop later that afternoon, his parents called the school. Kyron was nowhere to be found. Over the course of the next few days, air units, canine...