The Oklahoma City bombing was a domestic terrorist truck bombing of the Alfred P. Murrah Federal Building in Oklahoma City, Oklahoma, United States, on April 19, 1995, the second anniversary of the end to the Waco siege. It also occurred on the same day as the execution of Arkansas white supremacist Richard Snell, who had "predicted" a bombing would take place that day; despite rumors, it remains unclear if Snell's execution served as a motive for the bombing. The bombing was the deadliest act of terrorism in U.S. history prior to the September 11 attacks in 2001, and remains the deadliest act of domestic terrorism in U.S. history. On April 19, 2000, the Oklahoma City National Memorial was dedicated on the site of the Murrah Federal Building, commemorating the victims of the bombing. Remembrance services are held every year on April 19, at the time of the explosion.