Knocking on the wrong door, approaching the wrong car: the common mistakes leading to gun violence

Gun violence in America is sadly no longer news. But the mundane circumstances of the latest violence this week is.

In each case, the young victims made a simple mistake – ringing on the wrong doorbell, driving into the wrong driveway, getting into the wrong car.

The shootings have led to renewed calls for stricter gun laws and led to questions about the stand-your-ground laws which allow people to use deadly force if they feel threatened.