NEW: Entire Guthrie Family Cleared, TMZ Receives 4th Note and DNA From “Unknown Male”

There have been several significant developments in the investigation into Nancy Guthrie’s whereabouts. Most notably, the Sheriff’s Department announced all Guthrie siblings and their spouses have been cleared as possible suspects. Investigators have also released info on DNA found in a pair of gloves, TMZ has shared details from a new note suggesting Nancy is in Mexico, and searchers are using new technology to try and find a signal from Nancy’s pacemaker. See omnystudio.com/listener for privacy information.