A former professor, who made headlines for saying that 9/11 victims deserved to die, was on “The Kelly File” tonight for part one of an exclusive interview.

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The day after the Sept. 11 terrorist attacks, former University of Colorado Boulder professor Ward Churchill called the victims “little Eichmanns,” comparing them to murderous Nazi Adolf Eichmann. He also suggested that dead Americans helped grease the wheels of an immoral U.S. foreign policy, and he praised the hijackers for being courageous and gallant.

Churchill’s remarks went unnoticed for years until Hamilton College invited him to speak in 2005. When the essay resurfaced, the college rescinded the offer.

The University of Colorado Boulder investigated and determined that Churchill’s essay was protected speech, but then accused him of unrelated misconduct and cut him loose in 2007.

Megyn Kelly asked, “How could you draw a moral equivalence between 3,000 dead Americans and a murderous Nazi like Adolf Eichmann?"

“Did you have to be so glib about it? Did you have to be so callous?” she asked.

Later, she asked Churchill, “Will you apologize to anyone?”

“No,” he said defiantly.

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Watch parts 1 and 2 below. Watch more of Kelly’s exclusive interview with Churchill Tuesday, at 9p ET.