This survivor spoke for exactly the length of time it took a gunman to kill 17 people

Emma Gonzalez, who has become one of the leading voices in the movement against gun violence in America, made a powerful speech at the March For Our Lives rally on Saturday.

The teenager spoke at the protest in Washington DC, which was attended by thousands of people and viewed by millions of people around the world, as youngsters attempt to persuade politicians to change gun laws.

During her speech, Gonzalez made a point of highlighting the six minutes and twenty seconds it took the shooter at the Marjory Stoneman Douglas High School on February 14 to kill 17 students and injured 15 more with an assault rifle.

The reported time it took was six minutes and twenty seconds and not only was that a fact in her speech, it was how long her entire speech took.

Reportedly, it took the shooter six minutes and twenty seconds, which was exactly the length of her speech.

She began her speech by saying:

Six minutes and about 20 seconds. In a little over 6 minutes, 17 of our friends were taken from us, 15 were injured and everyone in the Douglas community was forever altered.

Everyone who was there understands. Everyone who has been touched by the cold grip of gun violence understands.

For us, long, tearful, chaotic hours in the scorching afternoon sun were spent not knowing. No one understood the extent of what had happened.

No one could believe that there were bodies in that building waiting to be identified for over a day.

No one knew that the people who were missing had stopped breathing long before any of us had even known that a code red had been called.

Gonzalez spoke for around two minutes, naming all the victims of the shooting before observing several minutes of silence.

The scene was a powerful moment, as Gonzalez stared out into the distance with tears rolling down her face.

Chants and support from the crowd occasionally broke out, but her focus wasn't broken.

After around four minutes a timer went off and Gonzalez concluded her speech by saying:

Since the time that I came out here, it has been 6 minutes and 20 seconds.

The shooter has ceased shooting and will soon abandon his rifle, blend in with the students as they escape and walk free for an hour before arrest.

Fight for your lives before it's someone else's job.

View Gonzalez's speech in full, courtesy of NBC News in the video below.

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