Step into the 2020 True Crime Vault where each story is unforgettable.

When somebody you love is murdered, it is the very, very worst thing.

And the only thing worse than that is when the person who did it gets away with it. This is a huge who done it.

Who came into Dr. Joseph Sanya's house, shot him and knifed him. How did you describe your relationship

with Dr. Songyang? He's the love of my life. We were dealing with something that was a hit.

We started racking our brains, well, it's got to be some type of girlfriend's situation.

A stalker.

There was this big, creepy-looking guy sitting there, and he was staring at the door, like he was looking for someone or watching someone.

A confession, a payoff,

and a courthouse twist that nobody saw coming. Everybody is stunned. Stunned. I was devastating.

I mean, I had a moment of just, just silence. I couldn't breathe, I couldn't think.

You can't make this stuff up.

That's one of the fascinating things about this.

This whole thing is nothing but darkness and evil.

This is the oldest story in the book.

This is vengeance.

This is pride.

This is revenge.

This is revenge.

... is revenge.

Today in Lubbock,

cooler temps that will dip into the upper 70s and lower 80s.

...