Mass killings in the U.S. just hit a record low since '06

Data: Mass Killing Database; Chart: Axios Visuals

Mass killings in the U.S. so far this year have dropped to their lowest level since researchers began tracking mass homicides in 2006.

The big picture: This decline tracks with a broader cooling of violent crime across the U.S. following pandemic-era spikes, though criminologists suggest the drop may simply mark a return to historic averages.