Seven-year-old Kyron Horman vanished from his Oregon elementary school in 2010, sparking the state's largest criminal investigation.
Investigators are now using new technology to digitize thousands of case documents and analyze leads.
Kyron's father says he remains hopeful authorities will solve the mystery of his son's disappearance.
AI-generated summary was reviewed by a CNN editor.
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.
