The maintenance man in North Carolina had just arrived to fix damage from a leak. The teenager in Georgia was only looking for his girlfriend’s apartment. The cheerleader in Texas simply wanted to find her car in a dark parking lot after practice.
Each of them accidentally went to the wrong address or opened the wrong door — and each was shot. They had made innocent mistakes that became examples of the kind of deadly errors that can occur in a country bristling with guns, anger and paranoia, and where most states have empowered gun owners with new self-defense laws.