First-grader with ADHD loves the police. Now he patrols his school in uniform.

Jackie McCubbins got a call from Batman. “He told me that Joker is trying to cause trouble,” the 7-year-old said. “Joker is destroying the playground. He's going down. He's going to jail.” Jackie's cover is as a first-grader at Kentucky Trail Elementary School in Belton. But his police uniform gives him away.