A Los Angeles-area man pleaded guilty to felony harassment charges in federal court on Thursday for sending fake ransom notes posing as a kidnapper of "Today" show co-host Savannah Guthrie's missing elderly mother. Derrick Callella, 42, pleaded guilty to two counts of harassment by telecommunications device, marking the only criminal conviction to date stemming from the disappearance of 84-year-old Nancy Guthrie from her home in Tucson, Arizona, five months ago. The charges carry a maximum penalty of two years in prison and a $250,000 fine. But the plea agreement with prosecutors calls for Callella, a resident of Hawthorne, California, to...