Shadowy video, first known arrest mark big breaks in Nancy Guthrie abduction (v)

Authorities on Tuesday released video of an armed man in a ski mask tampering with the doorbell camera at the Arizona home of U.S. television journalist Savannah Guthrie’s elderly mother shortly before she was abducted nine days earlier in a presumed kidnapping for ransom.

Retrieval of the images came hours before another major break in the search for 84-year-old Nancy Guthrie – the first known arrest in a case making national headlines following days in which investigators reported making little progress.