A policeman who helped end one of the deadliest school shootings in US history relives the massacre

On a blazing summer day 50 years ago in Austin, a sniper wreaked unprecedented carnage on the campus of the University of Texas.

The gunman climbed the school’s iconic Main Building, known as the Tower, armed with rifles, a sawed-off shotgun, and other firearms.

He then unleashed a methodical, 96-minute killing spree on the people below, killing 15 and injuring more than 30 others before Austin police officers shot him dead atop the tower.

The violence that day would be the first of its kind — before Sandy Hook, Virginia Tech, or Columbine.

Monday is the 50th anniversary of the shooting, which was considered the first mass school shooting in American history.

“People sent me newspaper articles from London, from Sweden. It hit the networks and it was all over the world,” Ramiro “Ray” Martinez, one of the officers who gunned down the shooter, told Business Insider.

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