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
Oklahoma City bombing McVeigh timed his attack to coincide with the second anniversary of the deadly fire that ended the siege at the Branch Davidian compound in Waco, Texas. The official investigation, known as "OKBOMB", saw FBI agents conduct 28,000 interviews, amass 3.5 short tons (3,200 kg) of evidence, and collected nearly one billion pieces of information. The bombers were tried and convicted in 1997. McVeigh was executed by lethal injection on June 11, 2001, and Nichols was sentenced to life in prison in 2004. Michael and Lori Fortier testified against McVeigh and Nichols; Michael was sentenced to 12 years in prison for