Polygraph tests in Guthrie case addressed by Sheriff

Eighteen days have passed since 84-year-old Nancy Guthrie, the mother of NBC "Today" show host Savannah Guthrie, went missing from her Tucson-area residence on February 18th. Investigators maintain the belief that she was taken by force. An official with the Pima County Sheriff's Department has released a statement with the latest updates. LiveNOW’s Andy Mac is speaking with Michael Alcazar, a former NYPD Detective, after the Pima County Sheriff's Department released an update on the case, saying they are still processing DNA.