[PROOF] Good Guy With A Gun Can Stop A Mass Shooting

A brave dad armed with a pistol stopped what could have been a mass shooting Saturday inside an Alabama McDonald's when he took down a masked gunman who had stormed in and opened fire.

The unidentified father was leaving the establishment with his sons when a masked man walked into the Birmingham fast-food restaurant and started shooting, WBRC-TV reported. The father returned fire and, during the ensuing shootout, the gunman, the father and one of the man's teenage sons were struck, according to the station.

The gunman, who was not identified, later died of his injuries. The other two injuries were not considered life-threatening.

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Markus Washington, one of the McDonald's employees, told WBRC-TV he was making two quarter-pounders when bullets started to fly. Washington said he ran into the freezer, where he heard about 15 shots fired.

“I’m feeling grateful,” he told the station. “Wrapping my head around it all, I was just wishing someone would come wake me up from this nightmare.”

Washington, oblivious to the shootout taking place outside the freezer door, feared the worst.

“All we hear is like different gunfire, so in my mind, I’m imagining everybody is dead. He’s looking for us,” he said. Washington added he was thankful the armed customer was there.