NEW YORK (AP) — A California man who was one of three Americans who helped subdue a gunman on a high-speed train traveling to Paris says he couldn't have picked better people to be with that day.

On "The Tonight Show Starring Jimmy Fallon" Tuesday, 23-year-old Anthony Sadler says he initially was asleep when Ayoub El-Khazzani was spotted with an AK-47 and other weapons on Aug. 21.

Sadler says his friends, U.S. Air Force Airman Spencer Stone and Oregon National Guardsman Alek Skarlatos, charged the gunman and that he suddenly awoke and began grappling with him too.

The audience began applauding when Fallon asked what happened next and Sadler replied they "beat him down a little bit."

Sadler says despite being slashed by a box cutter, Stone gave medical assistance to another injured passenger.