Oklahoma City bombing conspiracy theories Ryder rental truck containing more than of ammonium nitrate fertilizer, nitromethane, and diesel fuel mixture was detonated in front of the north side of the nine-story Alfred P. Murrah Federal Building. The attack claimed 168 lives and left over 600 people injured. Shortly after the explosion, Oklahoma State Trooper Charlie Hanger stopped 26-year-old Timothy McVeigh for driving without a license plate and arrested him for that offense and for unlawfully carrying a weapon. Within days, McVeigh's old army friend Terry Nichols was arrested and both men were charged with committing the bombing. Investigators determined that they were sympathizers of a
Timothy McVeigh he considered having them dropped at the site of the memorial where the building once stood, but decided that would be "too vengeful, too raw, too cold." He had expressed willingness to donate organs, but was prohibited from doing so by prison regulations. Psychiatrist John Smith concluded that McVeigh was "a decent person who had allowed rage to build up inside him to the point that he had lashed out in one terrible, violent act." McVeigh's IQ was assessed at 126. According to CNN, his only known associations were as a registered Republican while in Buffalo, New York, in the