Texas is no stranger to mass killings, but what’s behind the state’s deadly record?

Mass killings have been a regular feature in Texas life for the past 16 years, except for three years: 2010, 2012 and 2014, according to a database of mass killings in the U.S. since 2006.

The study shows 2,087 people were killed in 551 mass killings in the past 16 years. In Texas, 228 people were murdered in that time, and 215 of the victims were killed in shootings. That is 7.9% of all victims of mass killings in the United States.

This constituted deaths by a lone gunman that killed at least four in Texas. Only three other incidents with four or more victims were recorded in this time frame: stabbings that killed four each in Laredo and Port Lavaca and an incident that killed five in San Antonio by asphyxiation.

As the nation’s foremost law enforcement agency, the Federal Bureau of Investigation defined for years a mass shooting “as any incident in which at least four people are murdered with a gun,” according to the Department of Justice. In 2013, this definition was revised by Congress to mean “3 or more killings in one incident.”

August of 2019 was the deadliest month in Texas when it comes to mass killings with 30 people killed and another 47 injured in shootings only 25 days apart.

A single shooter armed with an assault-style rifle stopped at a Walmart in El Paso Texas Aug. 3, 2019, because he was hungry after a 10-hour drive from Dallas. Police believe he went into the store, ate and cased it without his weapon before later going back into the store and opening fire. Gov. Gregg Abbott said after the shooting that it was “one of the most deadly days in the history of Texas.”

Patrick Wood Crusius, 24, pled guilty in U.S. District Court earlier this year to a 90-count indictment, including 45 counts of violating the Matthew Shepard and James Byrd Jr. Hate Crimes Prevention Act and 45 counts of using a firearm while committing a crime.

Add to that the seven killed and another 22 injured in a killing spree just hours after a 36-year-old man, Seth Ator, was fired from his job at a trucking company, the month’s record is deadly indeed.

Shootings in Texas with a lone assailant that killed more than four people

Data was collected by USA Today in partnership with The Associated Press and Northeastern University.

  • Jonestown, July 24, 2007 — six victims killed

  • Ingram, June 1, 2008 — four victims killed

  • Alton, Dec. 6, 2008 — four victims killed, one injured

  • Killeen (Fort Hood), Nov. 5, 2009 — 13 victims killed, 22 injured

  • Belleville, Jan. 17, 2010 — five victims killed

  • Grand Prairie, June 23, 2011 — five victims killed, four injured

  • Bay City, Nov. 30, 2011 — four victims killed, one injured

  • Grapevine, Dec. 25, 2011 — six victims killed

  • Paris, Oct. 9, 2013 — four victims killed

  • Terrell, Oct. 28, 2013 — five victims killed

  • Rice, Sept. 20, 2013 — four victims killed

  • Waco, May 17, 2015 — nine victims killed, 18 injured

  • Houston, Aug. 8, 2015 — eight victims killed

  • Palestine, Nov. 14, 2015 — six victims killed, one injured

  • Del Valle, Sept. 8, 2016 — four victims killed

  • Channelview, Dec. 9, 2016 — four victims killed

  • Plano, Sept. 10, 2017 — eight victims killed, 1 injured

  • Sutherland Springs, Nov. 5, 2017 — 25 victims killed, 20 injured

  • Ponder, May 16, 2018 — four victims killed, 1 injured

  • Santa Fe, May 18, 2018 — 10 victims killed, 13 injured

  • Robstown, July 27, 2018 — four victims killed

  • Livingston, Feb. 11, 2019 — four victims killed

  • El Paso, Aug. 3, 2019 — 23 victims killed, 23 injured

  • Odessa, Aug. 31, 2019 — seven victims killed, 22 injured

  • Beaumont, Sept. 29, 2019 — four victims killed

  • Houston, Sept. 5, 2021 — four victims killed

  • Corsicana, Feb. 5, 2022 — five victims killed, two injured

  • Uvalde, May 24, 2022 — 21 victims killed, 17 injured

  • Centerville, June 2, 2022 — five victims killed

  • Fort Worth, Oct. 7, 2022 — four victims killed

  • Cleveland, April 28, 2023 — five victims killed

  • Allen, May 6, 2023 — eight victims killed, 7 injured