mass shootings

After many mass violence incidents, there is often the speculation that the perpetrator has a mental illness, but research suggests that the link is weaker than publicly perceived. And this repeated association leaves millions of Americans suffering from social backlash.

A first-aid class in Philadelphia is designed to help people learn how to keep shooting victims alive until the paramedics arrive. It teaches skills such as applying tourniquets to stop bleeding.

The killings of two journalists in Virginia last week have reignited a national conversation on mass shootings and gun control. Tania Lombrozo looks at some research and what it might mean for policy.