The duo are alleged to have designed and constructed a radiation weapon, but the FBI claims the device had been rendered inoperable and never posed any danger at any point during the undercover investigation.
The device was designed to operate as an x-ray gun capable of delivering a fatal dose of radiation to remotely targeted individuals. The victims would not know that they had abosrbed a lethal dose of radiation until debilitating symptoms appeared days later.
The investigation began after Crawford approached Jewish organizations and synagogues soliciting interest in a device that could kill enemies of Israel "while they slept." Alternately, he claimed to be a member of the Ku Klux Klan and was arrested trying to sell the device to Federal agents posing as members of the KKK. Crawford was also a member of Tea Party Patriots and listed himself on Linkedin as an "obedient drone" working for General Electric.