Timothy James McVeigh (April 23, 1968 – June 11, 2001) was a United States Army veteran and security guard who was convicted of bombing the Alfred P. Murrah Building in Oklahoma City on April 19, 1995, the second anniversary of the Waco Siege, as revenge or to inspire revolt against what he considered a tyrannical federal government. The bombing killed 168 people, and was the deadliest act of terrorism within the United States prior to the September 11, 2001 attacks[citation needed]. He was convicted of 11 federal offenses, sentenced to death, and executed on June 11, 2001.