A professor at the Art University of Washington posted on his Facebook page that House Republicans deserved to die because they passed a healthcare bill replacing Obamacare.

"They should be lined up and shot," Professor John Griffin wrote in a public post that he later deleted. Campus Reform saved screen shots of his comments.

As if to reiterate his seriousness in making that comment, Griffin followed up with, "That's not hyperbole; blood is on their hands."

Prof: House GOP ‘should be lined up and shot’ https://t.co/MJIIWdbgAc — Campus Reform (@campusreform) May 8, 2017

Griffin later commented by calling Republicans a "f***ing joke" whose voters run "the gamut from monstrous to ignorant."

After some online controversy over his comments and an inquiry from Campus Reform, Griffin apologized for calling for murder of politicians, explaining it came from his "feeling of helplessness and fear" over the passing of the bill and his personal experience of having a pre-existing condition.

“The feeling of helplessness and fear that came from watching Congress’ treatment of Americans in situations like mine, and worse, led to my lashing out on social media in a way that was rash, untoward, and anathema to the way I wish to conduct myself,” he wrote. “I regret my words. I regret the fear that stoked them.”