The camera discovered on Nancy Guthrie's roof could be a crucial piece to her kidnapping investigation, according to an expert. "That's not a throwaway detail - it's potentially one of the most important clues," Dan Donovan, the founder and managing partner of Stratoscope Holdings, a security and risk management firm, exclusively tells Us Weekly. As the second ransom deadline nears, Donovan - who is not part of Nancy's investigation - says the location of the camera signifies this was likely a premeditated crime. "A camera on the roof suggests surveillance, planning and situational awareness.