A Minnesota couple becomes the target of a shooting on their own front lawn.

You need an ambulance?

I'm just shocked you! He's in your thinking killed to me!

Police don't know if the shooter is still a threat in the neighborhood, so they're very cautious.

He was absolutely refusing to surrender himself to the local police.

The New Brighton police, there were a bunch of coops.

He had taken a stand that New Brighton police were somehow to blame.

The investigation reveals a turbulent history between two neighbors.

This was a feud that had been percolating for several years.

There was a lot of hate there. There was a lot of anger.

They began finding animal parts and animals in their driveway. It was sort of Hatfield and McCoy's, if you will.

But who was the real instigator in this feud that resulted in cold-blooded murder?

I got the shotgun out, say five, they were going to do something.

She kept on, shoot, shoot, shoot.

It just escalated as they both felt the need to exert control over the situation.

The only way the situation was going to end was with one of them killing the other.

He was getting closer to snapping.

The suburb of New Brighton is known as one of the best places to live in Minnesota. It is a suburb just north of St. Paul, Minnesota.

Lots of families, lots of schools, lots of parks, just a really good neighborhood.

It's an area where people go to escape the hectic life of the inner city.

But on the evening of May 5, 2014, this peaceful area becomes the scene of a terrifying crime.

9-1-1-1, where's your emergency?

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