PORTLAND, Ore. -- Kyron Horman's family released new video and 200 photos of the missing boy Thursday.
Slideshow: View Kyron Horman Photos | More Photos
Kyron, a second-grader at Skyline Elementary School, vanished after attending a morning science fair on June 4 where he presented a project about red-eyed tree frogs.
Multnomah County deputies said Terri Moulton Horman was the last person to see Kyron and included her photograph on a questionnaire handed out to Skyline parents. She is associated with the case, deputies said, but has not been named a person of interest.
Kyron's disappearance ignited one of the biggest search efforts in Oregon's history -- a massive ground-search operation that involved more than 40 law enforcement agencies and hundreds of searchers.
Detectives have remained tight-lipped about the case, which was classified as a criminal investigation in mid-June, in the face of rampant speculation about what happened to Kyron.
So far, deputies haven't identified anyone as a suspect in the case.