Investigators are combing through hundreds of leads, more than 48 hours after Nancy Guthrie was taken against her will from her home. NBC News’ Liz Kreutz has the latest on the investigation. | NBC Nightly News with Tom Llamas

New surveillance video released by the FBI has shed new light on the abduction of Nancy Guthrie, Savannah’s mother. NBC News’ Liz Kreutz on what the disturbing doorbell footage reveals about the masked subject. | NBC Nightly News with Tom Llamas

TONIGHT: Lester Holt anchors NBC Nightly News from Washington, D.C. after American Eagle Flight 5342 carrying 60 passengers and four crew members, collided midair with an Army helicopter near Reagan Washington National Airport | NBC Nightly News with Tom Llamas