WJLA-TV / AP
This Dec. 11, 2013, image from video provided by WJLA-TV, shows Ryan Loskarn, former chief of staff to Sen. Lamar Alexander, R-Tenn., being escorted from his Washington home by U.S. Postal Inspector police. Loskarn has been found dead in Maryland, just weeks after the former staffer's arrest on child pornography charges.