Aryan Republican Army Kansas reported that McVeigh and Brescia were frequent associates, while Guthrie bore a distinct physical resemblance to "John Doe Number Two". Timothy McVeigh's sister, Jennifer, also claimed that he had been one of the participants in several, unspecified bank robberies. David Paul Hammer, a convicted murderer who was imprisoned with McVeigh at the United States Penitentiary, Terre Haute, has alleged that McVeigh told him details of the Oklahoma City bombing that contradict the account related in court. According to Hammer, McVeigh claimed to have been working as a deep cover operative for the US Department of Defense, having infiltrated ARA
Timothy McVeigh people he wanted to be a gun shop owner and sometimes took firearms to school to impress his classmates. McVeigh became intensely interested in gun rights, as well as the Second Amendment to the United States Constitution, after he graduated from high school, and read magazines such as "Soldier of Fortune". He briefly attended Bryant & Stratton College before dropping out. In May 1988, at the age of 20, McVeigh graduated from the U.S. Army Infantry School at Fort Benning, Georgia. While in the military, McVeigh used much of his spare time to read about firearms, sniper tactics, and explosives.