On April 13, 16-year-old Ralph Yarl was shot when he went to the wrong address to pick up his siblings. Days later, 20-year-old Kaylin Gillis was shot and killed in upstate New York after her and a group of friends turned into the wrong driveway. We explore what these types of incidents say about gun culture in America, and how police across the country are preparing for the worst as gun reform remains stalled in Washington.

Guest: Josh Campbell, CNN Correspondent