US Gun Violence: 450 Mass Killings Since 2006, Majority Target Known Individuals

Detailed Tracker Reveals 58% of the Victims Were Familiar to the Shooter; Most Shooters are Male, Averaging Age 31.

Since 2006, the US has experienced 450 mass killings, where four or more people (excluding the perpetrator) were killed. These incidents have happened annually on average 24 times, resulting in a total death toll of 2,411 individuals.
The majority of these mass killings (58%) involved victims who were familiar to the shooter, often taking place in homes and involving people they knew, loved, or were formerly relatives or acquaintances.
Despite public mass killings receiving the most media attention, they represent only a small proportion of the total, with 28% confirmed to involve strangers to the shooter. Many mass killings happen unnoticed outside of their immediate communities.
Mass killers are predominantly male, with a median age of 31. The racial profile of the killers is diverse, but predominantly White (38%) or Black (29%), followed by Hispanic/Latino (12%), Asian/Pacific Islander (5%) and Native American (1%).
In terms of consequences for the shooters, 36% died at the scene, with 78% of these being suicides. Of those who survived, 63% were sentenced to life imprisonment, while 9% were sentenced to death.