The FBI has joined an expanding search for a 7-year-old Oregon boy who vanished after his stepmother left him at his Portland elementary school on Friday morning.
Detectives on Sunday interviewed parents and students at the school to glean any possible clues as relatives distributed flyers with Kyron Horman's picture on Sunday.
The boy and his stepmother attended a science fair at the school early Friday, and she last saw him walking down a hallway toward his 2nd grade classroom at about 8:45 a.m. He was wearing a "CSI" T-shirt and dark cargo pants.
Police said Kyron did not return home on the bus as scheduled. The Multnomah County Sheriff's Office was contacted at about 4 p.m., and authorities have been searching the school and the surrounding area since then.
Investigators have been working to determine a detailed timeline of the boy's movements on Friday morning, Multnomah County Sheriff Dan Staton said at a news conference Sunday. He said he wasn't prepared to call the boy's disappearance a kidnapping.
Authorities were reviewing photos and videos taken at the school's science fair. The last photo of Kyron shows the boy smiling Friday in front of his project on the red-eyed tree frog.
Asked if there were any persons of interest, Staton replied: "In this type of situation I think everyone is of interest to us."
The FBI has dispatched its Child Abduction Rapid Deployment Team, as well as its Behavioral Analysis Unit, which is often dispatched when a young child disappears. Its presence doesn't mean law enforcement has determined the child has been abducted, FBI spokeswoman Beth Anne Steele said in an e-mail.
Copyright 2010 AP News
