Next up, a story from Syria's civil war.
Some of the images from this conflict are difficult to watch.
Some people might find them disturbing, so we want to make you aware of that, because this story includes footage of a Syrian woman who had been shot be a sniper while she was walking down the street.
We're showing to you because what happened next.
A Syrian teenager, 17 years old, crawled out into the street to try to save her.
He isn't her relative or neighbor.
They've never met.
He crawled out through the gunfire and put his own life at risk because he said he knew he had to save the woman or die trying.
He was able to help get out of the street.
He wasn't able to save her life.
Later, he talked with CNN's Arwa Damon.
“We wanted to save her, to get her to a hospital.
I am not a hero.
I am just like anyone else.”