On April 19, 1995, Timothy McVeigh blew up the Alfred P. Murrah Federal building in Oklahoma City, Oklahoma, killing 168 people and wounding several hundred more. At the time, it was the deadliest terrorist attack on U.S. soil. Before McVeigh was executed, Inside Edition spoke with his family members about what life was like for them after the attack and why his father was so repulsed by what happened.