TMZ.com: Cops Deny Report Claiming Savannah Guthrie's Brother-In-Law 'May Be' a Suspect - NANCY GUTHRIE COPS DENY REPORT BROTHER-IN-LAW COULD BE A SUSPECT ... 6:55 AM PT - No suspects have been identified in the ongoing investigation into the disappearance of Nancy Guthrie, the Pima County Sheriff's Department said Wednesday morning.