Gun Violence Archive defines a mass shooting as an incident where at least four people were shot.
The company points to 18 incidents as proof that its controversial methods save lives. The record is a lot more complicated.
The ALICE Training Institute was an early proponent of having teachers and students confront gunmen. There’s little evidence its approach works.
The perpetrator’s handgun was assembled from parts available for purchase without a background check.
Las Vegas's death investigators witnessed the atrocities of the Route 91 shooting, then had to grapple with the difficult task of healing themselves.
The background check system once stopped some shooters from getting a gun. But in Texas, like 29 other states, private sellers don’t have to vet their customers.
America’s news organizations must acknowledge the negative impact our reporting can have — and pledge to change course.
Grappling with the strengths and the fissures exposed by a mass shooting in my hometown of El Paso.
Katherine Schweit thinks people don’t realize how much power they have to prevent mass shootings.
Google Shopping has a policy against posting gun accessories. But we identified multiple listings for high-capacity magazines.
The Russian-developed 8M3 rifle round is known for its ability to expand and fragment on impact, creating catastrophic wounds.