Now the local sheriff's office is on the lookout for "evil clowns and anyone considering creepy clown activity."
The masked culprit told the cops that he had been inspired by the wave of creepy clown sightings around the country last year.
It all went down in the parking lot of a Torchy's Tacos in Denver.
Scientists know where fear comes from—it's triggered by the feeling of losing control or being rendered powerless in some way. But why is it now a cultural obsession?
"I just want to do some kids shows and have fun and face paint and make balloons, you know? I don't want to risk going out and possibly getting assaulted."
"We want the public to feel safe and not be afraid," a flyer advertising the march says. "So come out, bring the family, meet a clown, and get a hug!"
The sixth grader was arrested and charged with possession of a weapon on school grounds.