They were shot after pulling into the wrong driveway, ringing the wrong doorbell, getting into the wrong car in a parking lot.
In the space of a single week, four young, unarmed Americans were shot after simple, everyday mistakes. One died.
In a country home to the most armed populace on Earth, where fear of violent crime often reflects spin rather than statistics, and where "stand your ground" laws proliferate, a simple mistake can turn deadly.
