Federal investigators released new black‑and‑white surveillance images and short video clips Tuesday showing a masked person at the front door of 84‑year‑old Nancy Guthrie ’s Tucson‑area home on the night she disappeared. The footage, recovered from “residual data” after recording devices were removed, showed an individual in a ski mask, gloves and backpack appearing to tamper with Guthrie’s doorbell camera and, at times, using plants from the yard to obscure the lens. Investigators and the