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In this Wednesday, March 9, 2011, photo, John Skelton, accused in the disappearance of his three sons, looks on during his pretrial at the Lenawee County Court House Adrian, Mich. Skelton insisted on Monday, July 4, 2011, that he doesn't know the whereabouts of his three young sons who have been missing since Thanksgiving. He believes the boys are in the custody of members of an underground sanctuary group. (AP Photo/Detroit Free Press, Andre J. Jackson)

FILE - In this file combo made with undated photos provided by The National Center for Missing & Exploited Children shows, from left, Alexander Skelton, 7 Andrew Skelton, 9, and Tanner Skelton. 5. The three young brothers from southern Michigan missing since Thanksgiving are in the custody of members of an underground sanctuary group, their jailed father says. (AP Photo/National Center for Missing & Exploited Children, File) NO SALES