We are talking about when four or more people, not including the shooter, are injured or killed in the same shooting incident.
A Sample of the larger shootings:
17 killed and 17 Injured – February 14, 2018 – A former student unleashes a hail of gunfire at Marjory Stoneman Douglas High School in Parkland, Florida, killing at least 17 adults and children. Nikolas Cruz, 19, has been charged with 17 counts of premeditated murder.
13 killed and 2 Injured – November 7, 2018 – Twelve people are killed in a shooting at the Borderline Bar & Grill in Thousand Oaks, California. Officials say, the gunman, Ian David Long, shot an unarmed security guard outside the bar, then went in and continued shooting, injuring other security workers, employees and patrons.
11 killed and 7 Injured – October 27, 2018 – Eleven people are killed in a shooting at the Tree of Life synagogue in the Squirrel Hill neighborhood of Pittsburgh, PA. 46-year-old Robert Bowers surrendered to authorities on the third floor of the building and is now facing federal charges, including hate crimes. Bowers told a SWAT officer while receiving medical care that he wanted all Jews to die and that Jews “were committing genocide to his people,” a criminal complaint filed in Allegheny County says.
10 Killed and 13 Injured – May 18, 2018 – Dimitrios Pagourtzis, 17, allegedly walks into an art class and begins firing, killing 8 students and 2 teachers at Santa Fe High School in Santa Fe, Texas. Pagourtzis is arrested and charged with capital murder and aggravated assault of a public servant.
1 Killed and 19 Injured – June 17, 2018 TRENTON, N.J. — Gunmen opened fire at an all-night arts and music festival early Sunday morning, sending people running over each other in the scramble to safety, authorities said. One suspect was killed and 22 people, including two suspects, were injured.
2 killed, 17 Injured – Jan. 23 in shooting at Marshall County Kentucky High School. Gabe Parker, a student at Marshall County High School in Benton, Kentucky, is accused of killing two 15-year-old classmates and wounding 17 others with gunfire on Jan. 23. He was arrested and is facing two counts of murder and 17 counts of assault.
Overall Gun Violence Statistics