What's wrong?

Somebody tell me to tag my mother or something. I don't know.

Okay, what do you see? I see blood.

I've got Weinberger, investigative journalist and former deputy sheriff.

I'm Anna Sige-Nikolasi, former New York City homicide prosecutor and host of investigation discoveries through conviction.

And this is anatomy of murder.

With some murders, one of the challenges for investigators and even prosecutors beyond the evidence or lack thereof

is making sure we don't get tunnel vision and if we do recognizing it for what it is.

And then making sure we follow the actual evidence rather than letting our hunches forge the path.

Today's story about three homicides in Alexandria, Virginia is an example of the dangers of that push and pull.

Whether it's talk on the street or in the media, a suspect or suspects could rise to the top of those discussions even before a real suspect profile emerges for investigators.

In law enforcement circles, it's often referred to as outside noise.

But the reality always falls back to the evidence and what theories and suspects develop outside of the noise.

Today's case begins in 2003.

56-year-old Nancy Dunning was a well-known real estate agent in Alexandria, Virginia.

Nancy was compassionate, she exuded positive energy and she played a pivotal role in transforming her neighborhood of Delray, a pocket of Alexandria, into the thriving family-friendly community.

It is today an achievement that earned her the nickname Queen of Delray.

Nancy was also an active member in the community.

She was involved in the Delray Civic Association.

She was a columnist for the Alexandra Gazette.

She organized charity drives.

But above all, she was a devoted mother and wife married to Jim Dunning, a prominent member of the community.

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