TUCSON, Ariz. — A man briefly detained as a person of interest in the disappearance of Nancy Guthrie is demanding that Pima County investigators unseal the evidence that led deputies to search his family's home, as a legal dispute over the handling of the case continues to unfold alongside the still-unsolved investigation.

Carlos Palazuelos, 36, a delivery driver, was detained February 10 by Pima County Sheriff's deputies while authorities searched for leads in the disappearance of Guthrie, the 84-year-old mother of "Today" co-anchor Savannah Guthrie. He was held for roughly seven to eight hours before being released the same day without charge.

Six months later, the circumstances that led investigators to Palazuelos remain unclear, according to his attorney, Jesse Showalter of the law firm Robbins Curtin Millea & Showalter. Showalter told Newsweek he wants the sealed search warrant affidavit made public. "I want to see the search warrant affidavit that was used in order to obtain the search warrant that led to the arrest and the search of his family home," Showalter said, adding that he wants to understand what evidence investigators presented to a judge to justify the search.

The search warrant used to raid the Palazuelos family home remains under seal, according to Showalter. "Whatever evidence supposedly existed, for the arrest and for the search is secret," he said, adding that whether the material is........

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