A powerful New York Times editorial paints a dispiriting portrait of U.S. gun violence, using three numbers and one calendar. Here’s the headline: “477 Days. 521 Mass Shootings. Zero Action From ...

There is no consensus among organizations that track shootings in the U.S. about the definition of "mass shooting" Twenty-one shot dead in Uvalde, Texas. Ten in Buffalo, N.Y. Four in Tulsa, Okla.

In recent years, it seems Western Pennsylvania has seen more than its fair share of mass shootings. • LA Fitness in 2009. • Western Psych in 2012. • Wilkinsburg in 2016. • Tree of Life in 2018. • ...

There is no universal standard for what constitutes a mass shooting, potentially causing discrepancies in data and research among authorities and experts -- and confusion for the average person. "Some ...

Wednesday’s massacre in San Bernardino was the latest mass shooting in America. By some counts — including a heavily cited version — it was the 354th of the year. By a narrower definition, it was the ...