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The deadliest mass shootings in modern U.S. history

A woman near the scene of the Las Vegas shooting. Photo; John Locher / AP

A shooting at a high school in Broward County, Florida has now joined the list of America's deadliest mass shootings.

The big picture: The death tolls from mass shootings are rising. As of a decade ago, the deadliest shootings in modern U.S. history had killed 16, 21 and 23 people. Now, it's 32, 49 and 58.