The shooting at Borderline Bar in Thousand Oaks, California last night marked the 307th mass shooting in the United States so far this year, according to data kept by the Gun Violence Archive, which tracks shootings in the U.S.
To put this into perspective, we are 312 days into the year, meaning the US has had nearly as many mass shootings as days in 2018.
Americans are more likely to die from gun violence than many leading causes of death combined, with some 11,000 people in the US killed in firearm assaults each year.
There is no broadly accepted definition of a mass shooting. The Gun Violence Archive defines a mass shooting as a single incident in which four or more people, not including the shooter, are "shot and/or killed" at "the same general time and location."
The Gun Violence Archive data show that over 12,000 people have died from gun-related violence so far this year in the U.S., and more than 24,000 have been injured.