If you happened to be watching the 5 pm newscast on NBC 5 in Chicago yesterday, you might have been taken aback. That’s because a shocking, and threatening t-shirt seems to have flashed across the screen during coverage of the NATO summit protests. The shirt? “Kill Glenn Beck.”

A Beck listener alerted us to the incident after seeing it live, and so we checked. Here’s what we found:

NATO Protester Wearing a Kill Glenn Beck

NATO Protester Wearing a Kill Glenn Beck

NATO Protester Wearing a Kill Glenn Beck

While the screen shots aren’t definitive, if you look closely, it seems you can make out the words. Still, we wanted more. And wouldn’t you know it, we found that a “Kill Glenn Beck” shirt does exist. A Tumblr account featuring someone called “protesthour” features the piece of clothing:

NATO Protester Wearing a Kill Glenn Beck

A "Kill Glenn Beck" shirt found on Tumblr.

According to the caption, the man pictured got the shirt at a concert for the ironically-named band, “Hate.” Just in case that band isn’t in your regular music rotation, Hate is a Polish heavy metal group know for such work as “The Litanies of Satan.” They completed a North American tour last year but cancelled a European one recently.

It’s unclear if the man purchased the shirt directly from the band (the band’s merchandise section does not have the shirt) or from another vendor at the concert  — or if he was simply given the shirt while at the concert.

But here’s what we do know: a Glenn Beck fan spotted a t-shirt that the fan thought said “Kill Glenn Beck;” we found some screen shots that seem to show that; and we found a website with a guy wearing such a shirt, so we know it exists.

It would certainly not be surprising if a protester was, in fact, wearing such an abhorrent article of clothing. Remember, chants of,  “What do we want? Dead cops!” rang out across the Windy City on Sunday.