Timothy McVeigh learning that agents in the investigation of the Midwest Bank Robbers (an alleged Aryan-oriented gang) had turned up explosive caps of the same type that were used to trigger the Oklahoma City bomb. Agents expressed surprise that bombing investigators had not been provided information from the Midwest Bank Robbers investigation. McVeigh declined further delays and maintained until his death that he had acted alone in the bombing. Some witnesses claimed to have seen a second suspect, and there was a search for a "John Doe #2", but none was ever found. Notes Further reading Timothy McVeigh Timothy James McVeigh (April
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