This murder was always going to shake the community, but would this case have still come in at all if she hadn't opened a package by accident? And so it's really thanks to that employee, Good Samaritan, who saw this and said, wait a second, is this what's causing the problem and tried to do something to help.

I'm Scott Weinberger, investigative journalist and former deputy sheriff.

I'm Anasiga Nikolazi, former New York City homicide prosecutor and host of investigation discoveries true conviction.

And this is Anatomy of Murph.

Arapaho County, Colorado is an area that blends the pace and complexity of a big city with the beautiful stillness of nature.

And a part of that county is Aurora, and even the tallest buildings in downtown Aurora look tiny

in the shadows of the towering Rocky Mountain peaks that surround them.

And for the men and women working these cases, those surroundings

aren't just beautiful. They're grounding. A reminder that solving a case is like hiking the

mountain trails. You don't see the whole path from the start. You get there by finding small pieces

one step at a time until the bigger picture finally comes into view.

It's a lesson that has also resonated with the Rappahoe County Deputy D.A. Osama

McRabee. Throughout his years as a prosecutor, he has seen firsthand and too many times the

devastation that violent crime brings to so many and the importance of accountability.

It was what kind of drew me to the law in the first place, that, you know, it's a way to help

people and see that the right outcomes are happening. Someone who's committed very serious events

and you want to make sure that they're held accountable. This is a career that lets me do that

and really help the victims who have been affected by crime.

Osama also knows that not every crime is obvious from the start.

Even a homicide can be obscured or hidden in ways many of us wouldn't consider.

And that's just what happened in this case, a murder that robbed six children of their

loving mom, Angela Craig, at the age of 43.

...