Alfred P. Murrah Federal Building bombing (1995)

On April 19, 1995, a truck bomb detonated outside the Alfred P. Murrah Federal Building, killing 168 people and injuring hundreds. The explosion destroyed a large portion of the building and killed 19 children who were in an on-site daycare center. Perpetrators Timothy McVeigh and Terry Nichols were convicted in connection with the attack; McVeigh was executed in 2001.