Krar, 63, who had connections to militia groups and other anti-government extremists, pleaded guilty to the charge in November 2003.  Krar's co-defendant and companion, Judith Bruey, was sentenced to over four years for conspiring to posses illegal weapons.

In an April, 2003, raid on a storage unit rented by Krar and Bruey, FBI agents found chemicals, including nitric and acetic acids along with the sodium cyanide, and instructions on how to produce chemical weapons. Agents also found machine guns, more than 100,000 rounds of ammunition, over sixty pipe bombs, and a variety of extremist literature, including The Turner Diaries, the novelized blueprint for a white revolution written by deceased neo-Nazi William Pierce and which inspired Oklahoma City bomber Timothy McVeigh.

In addition to the prison term, Krar was ordered to pay the government $29,600, the cost of sending a hazardous materials team to clean out his arsenal.  Krar's sentencing capped an extensive domestic terrorism investigation in which over 100 subpoenas were issued.