By Ian Goldstein
Updated September 02, 2015 at 11:31 AM EDT
Douglas Gorenstein/NBC

Tonight Show with Jimmy Fallon

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American college student Anthony Sadler and his friends recently made headlines after thwarting a gunman on a Paris-bound train. The 23-year-old appeared on Tuesday’s episode of The Tonight Show and recounted his story to Jimmy Fallon.

Sadler was sleeping on the train when he awoke to the sound of a gunshot and glass breaking. His friends, Spencer Stone and Alek Skarlatos, ducked down as a train employees sprinted by their seats. When they saw an AK-wielding gunman approaching, they reacted.

“I fully expected a gunshot to go off before we got there, but it just never did,” Sadler told Fallon.

Sadler, who has no military training, helped his friends disarm the attacker, eventually knocking the gunman unconscious. “Spencer hopped on him,” Sadler said. A few seconds later, me and Alek were there. And then we got to beat him down a little bit.”

Fallon asked the Sacramento State University senior about almost missing the train. “We were having so much fun in Amsterdam we actually almost stayed,” Sadler joked.

Watch the video below to hear Sadler tell the full story along with what he told his dad.

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Tonight Show with Jimmy Fallon

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