At 9:02 a.m. on April 19, 1995, a bomb exploded in a truck parked at the north entrance of the Alfred P. Murrah Federal Building in downtown Oklahoma City, killing 168 people and injuring approximately 850 in the worst single act of domestic terrorism in the U.S. prior to 9/11. Out of the wreckage, a city united to grieve and rebuild. Now, victims, witnesses, and first responders give their accounts of what happened on that fateful day in #OklahomaCityBombingOneDayInAmerica. Premiering Wednesday

A short history of Timothy McVeigh, the infamous Oklahoma City Bomber. | Oxygen