Timothy James McVeigh was an American domestic terrorist who masterminded and perpetrated the Oklahoma City bombing on April 19, 1995. The bombing itself killed 167 or 168 people, injured 684 people, and destroyed one-third of the Alfred P. Murrah Federal Building. A rescue worker was killed after the bombing when debris struck her head, bringing the total to 168–169 killed. It remains the deadliest act of domestic terrorism in U.S. history.