After rumors spread that a clown was on the loose on Pennsylvania State University’s campus early Tuesday, at least 500 students set out to find the source. That’s just one of countless incidents across the country related to clowns. Clown sightings have been reported Nova Scotia as well as in more than 20 states, including, Maryland, Virginia, Philadelphia, South Carolina, New Jersey and New York. Photos surfaced on social media Saturday of a man dressed as a clown holding a rifle and standing on a railroad bridge about 60 miles north of New York City.