"All the red flags ... were there," said Kenosha Police Chief Patrick Patton. "We narrowly missed a tragedy today."

Staff at a Kenosha, Wisconsin, school are being hailed as heroes Thursday for stopping a “suspicious” 13-year-old boy from entering an elementary campus while carrying two bags. The boy entered a secure area of the school after trying to get in through side entrances and was approached by staff,

A 13-year-old boy who had researched school shootings online was arrested hours after he tried to enter a Wisconsin elementary school with suspicious bags, police said.