Kyron Horman’s disappearance led to Oregon’s largest criminal investigation. The search lives on 16 years later

By Danya Gainor, CNN (CNN) — Though it was a comfortably cool summer morning in northern Oregon, teachers, children and their parents were drawn inside Skyline Elementary School to behold its young students’ lively science fair projects. Seven-year-old Kyron Horman stood proudly next to his presentation on red-eyed tree frogs, with his homemade tri-fold poster