Hello, I'm Dahlia Lyswick and this is a special audio presentation from Slate.

According to the Washington Post, Stata on school shootings more than 215,000 students

have experienced gun violence since the killings at Columbine High School in 1999.

And that number doesn't even include teachers and other school workers.

Today I'm talking with three people who experienced gun violence in their school.

We'll begin with Heather Martin.

She's currently a high school English teacher in Aurora, Colorado.

But in 1999, she was a senior at Columbine High School, where 13 people were shot to death.

Heather remembers the shooting began while she was in choir class.

A student ran up through the doors and just said, someone has a gun downstairs and they're

shooting.

We all kind of immediately jumped up, like probably out of shock and the teacher yelled

at us and was like, get down.

So we kind of sat down and then the gunfire erupted right outside the doorway.

So a bunch of people scattered.

I did not scatter.

I'm not really sure why I think I just was in shock and didn't want to overreact.

Definitely, not thinking that that could happen at my school.

There's a chance I went outside to investigate what was happening.

A friend of mine says that we went outside the door where we saw Mr. Sanders take a bullet.

I don't have any memory of that.

But we did come back into the choir room and eventually barricaded ourselves into the teacher's

...