1993The Waco seige ended when the Branch Davidians’ Texas compound was burned to the ground after a 51-day standoff between cult members and federal agents. More than 80 people were killed, including 17 children.1995The Alfred P. Murrah Federal Building in Oklahoma City, Okla., was destroyed by a bomb, killing 168 people and injuring more than 500 others. Timothy McVeigh committed the crime two years to the day after the Waco seige. McVeigh was executed in 2001.