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. • ...

A high-profile act of violence occurs, and lots of terms immediately get thrown around. "Terrorism." "Mass shooting." "Mass casualties." What do they all mean? Well, none of these terms or phrases ...

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 ...

On Monday morning, many in social media and the news reported that the Las Vegas tragedy is the United States' 273rd mass shooting of 2017. The factoid was widespread throughout Twitter, mentioned on ...

The problem is, you might see a few different numbers, all trying to quantify the same thing: the number of “mass shootings” during a given time. And they’re often radically different numbers. This ...

Three massage parlors in Atlanta, a grocery store in Colorado and an office in California were all sites of deadly mass shootings in March 2021. Twenty-two lives were lost during these tragedies, ...