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People watch the procession carrying the body of Ventura County Sheriff Sgt. Ron Helus, who was killed in the Thousand Oaks mass shooting. Photo: David McNew/Getty Images

The death toll from last August's shooting at a Walmart in El Paso, Texas, has risen to 23, officials confirmed Sunday. The attack is one of the deadliest mass shootings in modern American history.

The big picture: Mass shootings are becoming deadlier. The deadliest shooting 10 years ago left 16 people dead. The toll from the 2017 shooting at Las Vegas hotel is 59.

America's deadliest modern mass shootings
  1. Route 91 Harvest music festival, Las Vegas, October 2, 2017: 59 killed, 526 injured.
  2. Pulse, Orlando, Fla., June 2016: 49 killed and more than 50 injured.
  3. Virginia Tech, Blacksburg, Va., April 2007: 32 killed and 17 injured on campus.
  4. Sandy Hook Elementary School, Newtown, Conn., December 2012: 26 killed.
  5. First Baptist Church, Sutherland Springs, Texas, November 2017: 26 killed.
  6. Luby's Cafeteria, Killeen, Texas, October 1991: 23 killed.
  7. Walmart, El Paso, Texas, August 3, 2019: 23 killed, 26 injured.
  8. McDonald's, San Ysdiro, Calif., July 1984: 21 killed.
  9. Marjory Stoneman Douglas High School, Parkland, Fla., February 2018: 17 killed.
  10. University of Texas Tower, Austin, Texas, August 1966: 16 killed around campus.
  11. Inland Regional Center, San Bernardino, Calif., December 2015: 14 killed.
  12. Edmond post office, Edmond, Okla., August 1986: 14 killed.
  13. Fort Hood, Fort Hood, Texas, November 2009: 13 killed.
  14. Columbine High School, Littleton, Colo., April 1999: 13 killed.
  15. Binghamton Civic Association, Binghamton, N.Y., April 2009: 13 killed.
  16. New Jersey neighborhood and local shops, Camden, N.J, September 1949: 13 killed.
  17. Schoolhouse Lane neighborhood and Heather Highlands Mobile Home Village, Wilkes-Barre, Pa., September 1982: 13 killed.
  18. Wah Mee club in the Louisa hotel, Seattle, Wash., February 1983: 13 killed.
  19. Century 16 movie theater, Aurora, Colo., July 2012: 12 killed, 58 wounded.
  20. Navy Yard, Washington, D.C., September 2013: 12 killed, 8 wounded.
  21. The Borderline Bar & Grill, Thousand Oaks, Calif., November 2018: 12 killed, several wounded.
  22. Virginia Beach Municipal Center, Virginia Beach, Va., May 31, 2019: 12 killed.

This article was first published in October 2017 and has been updated several times after more recent shootings. The Vegas and El Paso tolls were updated in November 2019 and April 2020, respectively, after the victims died of injuries sustained in the attacks.

Go deeper

30 mins ago - World

U.S. will give Russians written response to NATO demands, Blinken says

Blinken and Lavrov shake hands in Geneva. Photo: Russian Foreign Ministry / Handout/Anadolu Agency via Getty Images

Secretary of State Antony Blinken confirmed after a meeting with his Russian counterpart on Friday that the U.S. will provide written answers to Russia's security demands next week.

Why it matters: Russia claims to be waiting for "concrete answers" to its demands that NATO rule out further expansion and roll back its presence in eastern Europe before deciding its next steps on Ukraine. But the U.S. and NATO have called those proposals "non-starters," and Friday's meeting offered no breakthroughs, so it's unclear how written answers might change the equation.

More surprises await scientists at Antarctica's "Doomsday Glacier"

Cliffs along the edge of the Thwaites Ice Shelf in West Antarctica. Photo: James Yungel/NASA

Researchers like David Holland, an atmospheric scientist at New York University, are in a race to understand the fate of a massive glacier in West Antarctica that has earned a disquieting nickname: "The Doomsday Glacier."

Why it matters: Studies show the Thwaites Glacier (its official name) could already be on an irreversible course to melt during the next several decades to centuries, freeing up enough inland ice to raise global sea levels by at least several feet.

Updated 3 hours ago - Health

The case for Operation Warp Speed 2.0

Illustration: Annelise Capossela/Axios

Omicron's blitz around the world has underscored the need for a new arsenal of COVID vaccines and therapeutics, experts say — and that may require an effort akin to Operation Warp Speed 2.0.

Why it matters: The virus will continue to evolve, potentially in a way that further escapes vaccine protection, and the best way to prevent more global disruptions to everyday life is to have tools ready to combat whatever comes next.