Multnomah County Sheriff Dan Staton says a lead sheriff's detective will continue to work full time on the Kyron Horman case, with help from the FBI, Oregon Justice Department and county prosecutors.
The sheriff told The Oregonian Thursday the investigation into the boy's June 4, 2010, disappearance from Skyline School will remain active until he's found, there's an arrest or there are no further leads.
Investigators have been examining at least 60 persons of interest. The newspaper reports the boy's stepmother, Terri Moulton Horman, remains the focus of investigators, but they still don't know what happened. Her lawyer has repeatedly declined comment.
The case has cost more than $1.4 million.
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Information from: The Oregonian
