ALBANY, N.Y. -- Authorities have released video of Glendon Crawford and undercover FBI agents during their investigation into his so-called "Death Ray" to kill Muslims.

In excerpts from the FBI's more than 60 hours of video, you can see Crawford finalizing what he believes is a lethal radiation device in a Schaghticoke warehouse. 

On June 18, 2013, the FBI knock down the warehouse door and arrest him. The story of how a self-proclaimed member of the KKK tried to build a death-ray begins at Rabbi Matthew Cutler’s Synagogue.

“He was talking about a weapon that would really eliminate people," Cutler said to Time Warner Cable News back in 2013.

When Crawford approached Cutler, he asked him to help kill the enemy. Cutler called police. 

“What I need to do I need to get the data from them," Crawford said on police videotapes while looking over an X-ray tube. 

Police didn’t arrest Crawford in April 2012. Instead, they planted undercover agents to understand what this man wanted to do. The man with a blurry face in the video above is an agent bringing Crawford X-ray tubes to an Albany hotel. They wouldn’t actually hurt anyone, but Crawford didn't know that. 

“After you get done cleansing the land," Crawford said, speaking about ethnic cleansing in the hotel. "We got some pretty thick scum to take care of.” 

A few months later, in October of 2012, Crawford meets with the Imperial Wizard of the KKK and pitches his plan. Officials said that included killing members of the Muslim community and targeting the governor’s mansion. 

“What do you suppose you could accomplish with a defensive weapon that can kill from a considerable distance, day or night through walls without making a sound leaving a wound that cannot be sensed that takes two weeks to kill you?" Crawford asked a group of people pretending to be interested. 

Crawford still doesn’t know the men with blurred faces are again undercover agents. 

In excerpts from the 60 hours of video, Crawford never waivers in his belief of ethnic cleansing and although his job as an industrial mechanic at General Electric in Schenectady would never qualify him as an expert in radiation, that never deters his cocky confidence. 

“This could kill whole cities in a night, silently," he said. 

With the X-ray tubes from the undercover agent, Crawford assembled what he thought was a lethal radiation machine in a Schagticoke warehouse. 

On June 18, 2013 while ironing out logistics with another undercover agent, the FBI had everything they needed. A jury convicted the 51-year-old of trying to acquire a weapon of mass destruction. He could face 25 years to life in prison when he is sentenced in December.