This is a list of the most notable mass shootings in the United States that have occurred since 1900. Mass shootings are incidents involving several victims of firearm-related violence. The precise inclusion criteria are disputed, and there is no broadly accepted definition.

Mass shootings are incidents involving multiple victims of firearm related violence. Definitions vary, with no single, broadly accepted definition. [1][2][3] One definition is an act of public firearm violence—excluding gang killings, domestic violence, or terrorist acts sponsored by an organization—in which a shooter kills at least four victims.

A mass shooting is a violent crime in which one or more attackers use a firearm to kill or injure multiple individuals in rapid succession. There is no widely accepted specific definition, and different organizations tracking such incidents use different criteria.

The 2017 Las Vegas shooting is the deadliest mass shooting in United States history with 61 fatalities. The severity of mass shootings in the United States has increased.

On October 1, 2017, a mass shooting occurred when 64-year-old Stephen Paddock opened fire on the crowd attending the Route 91 Harvest music festival on the Las Vegas Strip in Nevada from his 32nd-floor suites in the Mandalay Bay hotel. He fired more than 1,000 rounds, killing 60 people and wounding at least 413.

The 2021 Garland shooting, where three were killed.The entire event was caught on the store's CCTV system. A mass shooting is a violent crime in which one or more attackers kill or injure multiple individuals simultaneously using a firearm.Mass shootings have been documented using a variety of methods, including body cameras and closed-circuit television cameras (CCTV). [1]

One definition is that a mass shooting is an act of public firearm violence in which a shooter kills at least four victims. Gang killings, domestic violence , or terrorist acts by an organization are not included.

On October 13, 2022, a mass shooting took place in the Hedingham neighborhood of Raleigh, North Carolina, United States. Five people were killed, and two others were injured. [3]

A mass shooting is a violent crime in which one or more attackers kill or injure multiple individuals simultaneously using a firearm. There is no widely accepted definition of "mass shooting" and different organizations tracking such incidents use different definitions.

Jan 23, 2025 · mass shooting, as defined by the U.S. Federal Bureau of Investigation (FBI), an event in which one or more individuals are “actively engaged in killing or attempting to kill people in a populated area. Implicit in this definition is the shooter’s use of a firearm.”