Police officers arrived on the scene with their guns drawn.
A dad reports seeing one gunman and a man with a pipe running away in suburban Pittsburgh.
Since "It" and Gacy, killer clowns have invaded the public consciousness with plenty of movies, TV shows, and books to fuel our nightmares. Now, it's spread into real life and it doesn't seem to be going away anytime soon.
Clowns are currently scaring people across the world. I talked to Josh Zeman, a filmmaker and expert on urban legends, about this phenomenon.