Investigators release images of an armed intruder at the Nancy Guthrie house, but hopes fizzle later when a detained man is released.

Soon after the FBI released images of a masked person on Nancy Guthrie’s porch the night she went missing in Arizona, authorities detained a man who said he was questioned for hours Tuesday night and ...

The FBI yesterday released security photos and videos of a potential subject in the investigation showing a person wearing gloves, a mask and a backpack who appeared to tamper with the camera at Guthr...