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stated on October 9, 2017 in a speech at the University of California at Davis:

"There have been more than 270 mass shootings in the United States in the last year alone. That’s where four or more are killed."

Hillary Clinton made her False claim about mass shootings during a speech Oct. 9, 2017 at UC Davis.

By Chris Nichols October 10, 2017

Hillary Clinton’s False claim on mass shootings

Citing the Las Vegas shooting that killed 59 people and injured hundreds, Hillary Clinton urged the nation to do more to prevent gun violence during a speech at the University of California at Davis on Monday.

The Democrat and former presidential candidate rejected the idea that a debate over gun safety should wait until well after a mass shooting takes place.

"What better time than now?" Clinton said, speaking on her current book tour’s only scheduled stop in California.

Clinton went on to make a claim about the number of mass shootings that have taken place this year — and misstated how they are defined.

"There have been more than 270 mass shootings in the United States this year alone. That’s where four or more are killed. Two hundred and seventy. We cannot accept this as normal. We cannot become desensitized."

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Hillary Clinton made her claim about mass shootings during a speech Oct. 9, 2017 at UC Davis.

PolitiFact California took a deep look at how mass shootings are defined here, and found there’s wide disagreement on the matter.

Democrats and gun control advocates use the very broad criteria that a mass shooting includes four or more people killed — or injured — in one event. It was developed by the Gun Violence Archive, a group that logs shootings across the country by crowdsourcing media reports.

Under its definition, which does not require that anyone is necessarily killed, there have been more than 270 mass shootings so far this year.

But there have been far fewer of these crimes where, as Clinton termed it, "four or more people are killed."

More restrictive criteria

A database compiled by Mother Jones, a liberal magazine, shows there have been only three mass shootings so far this year that meet the four-or-more measurement expressed by Clinton at the speech.

The magazine itself shows seven mass shootings so far this year because it uses three or more deaths as its criteria. It excludes more conventional crimes such as armed robberies and gang violence in its count, focusing instead on "the distinct phenomenon of mass shootings."

Instagram posts

stated on December 16, 2024 in an Instagram post

Photo of a young man in a tie shows Wisconsin school shooter Natalie Rupnow.

The Gun Violence Archive, meanwhile, which includes gang shootings and home invasion robberies as mass shootings, had tallied 19 shootings in which four or more people were killed.

In the past, the federal government has used the more restrictive criteria of four or more killed to define a mass shooting. We found there’s no widely accepted definition that doesn’t create its own share of questions.

A spokesman for Clinton pointed to the Gun Violence Archive’s definition for mass shootings, but did not immediately provide an explanation for Clinton’s misstatement of that definition.

Our ruling

Hillary Clinton in her UC Davis speech said there have been more than 270 mass shootings in the United States so far this year. She defined the events as "where four or more are killed."

Our research has shown that a broad definition of mass shootings requires four or more people to be killed or injured. There have been more than 270 of those horrific crimes so far this year.

But Clinton left out the key words "or injured," dramatically changing the criteria for these shootings. There have been a much smaller number of mass shootings that meet this stricter criteria of "four or more people killed," nowhere near the 270 she claimed.

We rate Clinton’s claim False.

FALSE – The statement is not accurate.

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