The Alfred P. Murrah federal building in Oklahoma City, Okla., after it was bombed on April 19, 1995. The bombing, which killed 198 people and injured dozens of others, was the worst act of domestic terrorism in U.S. history. (Courtesy photo)
The Alfred P. Murrah federal building in Oklahoma City, Okla., after it was bombed on April 19, 1995. The bombing, which killed 198 people and injured dozens of others, was the worst act of domestic terrorism in U.S. history. (Courtesy photo)