colorado. the prosecution presents first and lays out a timeline of events that led up to the bombing. by mid-1994, mcveigh and nichols, along with their army friend michael fortier, were ready to put their plan into action. mcveigh decided the most effective weapon would be a truck bomb. in september 1994, mcveigh and nichols begin stockpiling ammonium nitrate, a fertilizer often used in truck bombs. >> you combine the ammonium nitrate, the oxidizer with the fuel and you have an explosive mixture. it's cheap, readily available and not particularly complicated to make. >> over the next few months, the two men start quietly gathering more components, including racing fuel, explosive charges, and 544 blasting caps they steal