I heard what I think is two gunshots.

Can you send an amort?

My brother said my husband is it was hit.

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

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

And this is Anatomy of murder.

There's an old adage, a person's home is their castle, a place they can rely on to provide comfort and safety for themselves and their loved ones.

And that's why when violence invades our homes, the very place we're meant to feel the safest, it shatters more than lives.

It fractures our sense of refuge.

George Young of Beaufort, Georgia, knew a thing or two about providing safety and security.

A hardworking husband and father of three sons, he devoted himself to looking after his family and protecting them from harm.

Safety was also George's business.

He owned a company that installed security systems,

and he also worked part-time as a security guard, which made it all the more shocking when fatal gunshots rang out on a dark November evening

right from the front porch of George Young's own home.

Beaufort just outside of Atlanta is a quiet corner of Gwinnett County, a place nearly a million people call home.

But on November 16, 2017, that number dropped by one, and everything changed.

The location of the emergency?

Montauk Hill Drive, Newford, Georgia.

Okay, and what's going on there?

I just heard a gunshot.

I was in the bed suite, my kids are asleep, but I heard what I think is two gunshots.

...