Digital sleuths and burger deliveries: Inside the true crime scene outside Nancy Guthrie’s home

TUCSON, Ariz. – Four weeks into the disappearance of Nancy Guthrie, the mother of NBC's "Today" co-host Savannah Guthrie, journalists camped outside her Tucson home gathered around a vehicle pulling up to the residence driveway, with their camera phones recording as the driver was told by a Pima County Sheriff's deputy that no one was allowed on the property. 

The driver backed out and began to pull forward when she rolled down her window and, with a stern voice, told the reporters to stop filming her.