Missouri State University’s “zero tolerance” policy extends to nerf guns used for student fun.

Sadly, one of its guest lecturers did not have the same concern for human life.

Frazier Glenn Miller, the 73-year-old former Ku Klux Klan leader accused of gunning down three people at a Jewish Community Center and a Jewish retirement community in Kansas on Sunday, was featured as a guest lecturer in a class at Missouri State University in 2012.

The professor who invited Miller to speak was David Embree, an adjunct professor of religious studies, reports Inside Higher Ed. The class was an interterm course on cultural and religious subgroups.

“One of the groups that students were pretty fascinated by and wanted more on was white supremacists,” Embree said, according to Inside Higher Ed. “One of the things I’ve found with many of these groups is that if I tell the story myself, [the students] don’t believe me. They just think I’m trying to make them look bad.”

In no uncertain terms, Embree explained that he detests Miller and everything he stands for.

“My acquaintance with Glenn Miller is a couple of phone calls and one hour in a classroom,” Embree added, according to Inside Higher Ed. “He epitomizes the worst possible manifestation of white supremacy/British Israelism and demonstrated to the 12 students who heard him speak that his philosophy is repulsive and truly threatening.”

In an email, a Missouri State spokesman called the Springfield, Mo. school a “marketplace of ideas.”

After the class, a person representing himself as Miller showed up on the Vanguard News Network, an antisemitic, white supremacist website, to vent about his appearance in shockingly racial and anti-Semitic terms.

“The two extremely ugly kikes, one fat one skinny, did not deny one single charge I made against the jews,” Miller seems to have written under his screen name, Rounder. “Their several questions were incredibly stupid, really. They did remain defiant with frowns the whole time, though. Noses stuck up in the air as if to dare me to do something about jewish attrocities [sic].”

“Time flew” during the two hours he was in the class, Rounder recalled. Topics included the “holyhoax” (presumably the Holocaust), “black crime, Federal Reserve” and “jewish leadership of the bolshevik revolution.”