Just 2 nights ago, a gunman opened fire on a country music festival in Las Vegas, killing at least 59 and injuring more than 500. Despite the chaos that erupted over the crowd during the horrific event, several brave people risked their own personal safety to help others, and managed to save multiple lives.

The shooting, which is now being called the worst in modern US history, took place during the Route 91 Harvest Festival. Shots began ringing out at the end of a performance by country star Jason Aldean, which were later determined to have come from the window of a hotel room in the nearby Mandalay Bay Resort. The perpetrator, 64-year-old Stephen Paddock, shot himself an hour after the massacre, just before police could apprehend him.

In honor of all victims and their loved ones, we've collected the most heroic stories from the harrowing night below, and we hope you'll read each one in memory of the sacrifices they made.