For years while reporting on the Haditha killings, I thought what everyone else thought.

That there were 24 civilians killed by Marines on November 19, 2005.

24 victims. That's what's been reported in basically every news story about Haditha.

Allegations that U.S. Marines murdered 24 Iraq.

24 unarmed men, women,

and 24... 24 women death of 24.

Civilian deaths of 24.

24 Iraqi citizens in the city of Hadith.

It's the number the military gave in press conferences.

24 Iraqi men, women, and children. The number that press conferences.

The number that members of Congress used when they talked about the killings.

Women and children, 24 people they killed.

Now this is the kind of stuff.

But as we got deeper and deeper into our reporting,

we began to wonder if maybe that number was wrong. This is the final episode of season 3 of in the dark.

This is the final episode of season 3 of In the Dark.

Patient Number Eight. One day our producer Somara was reading through the thousands of pages of documents that we'd receive by suing the military,

when she came across something that got her attention.

Samarra called to tell me about it.

Hey Madeline.

Hi, Samarra.

So I was calling you because I found something

...