On April 19, 1995, the Alfred P. Murrah Federal Building was blown up and 167 people were killed. This building was blown up by 4,800 pounds of explosives and all 50 of those standing outside of the building were hit with more than 37 tons of explosives. Although many people survived, those who did lost eyes, arms, legs, and fingers after they crawled and walked away from the disaster. In the aftermath of this calamity, police officers, firemen, rescue units and civilians from all over the United States came and helped rescue people from the rubble. The victims of the attack ranged in age from four months to seventy-three years old. More than two weeks after the explosion, bodies continued to be pulled out of the rubble. In addition to injuries sustained as a result of an impact, many more injuries were caused by the shower of falling glass and debris, a direct effect of the blast’s sheering effects on the north face of the Alfred P. Murrah Federal Building. The blast penetrated deep into the complex, catastrophically damaging blowing away about a third of the Building. In addition to completely destroying the Murray complex, nearby buildings felt the ramifications of the blast and several buildings, including the Water Resource Board building, the Athenaeum, and The Journal Record building were destroyed and/or irrevocably damaged by the explosion. Accordingly, the force of the blast was so powerful that it could be felt throughout the entire Oklahoma City downtown core.At the scene, investigators searched for clues to find out who had done this and specifically, how this heinous act had been carried out. Initial speculation pointed the finger at Arab or Middle Eastern terrorists, and later at American militia groups. How were the true culprits to this crime found out?