Up next a sexual encounter goes horribly wrong. She fought back, she gave us the evidence we needed. The victim pays with her life.

She didn't deserve to die, not that young, not that way. investigators think they have solid information on her killer.

But a brand new piece of forensic technology upends the investigation.

This was completely different from what they had expected. So, Lake Charles Louisiana,

one of America's gateways to the Gulf of Mexico.

It's a tight-knit blue-collar community where people work hard and live easy.

I was born and raised in Lake Charles. It's about a hundred thousand people. It's a diverse community. Many of our families

work at the petrochemical industry and the local casinos. But as Thanksgiving

approached in 2009, the piece of this Bayou Boomtown was shattered.

When shortly after dawn, a young woman was found dead off a secluded road just out of town.

Whoever did this was mad and angry and it was a brutal murder.

This homicide was overkill in every sense of the word. Someone was very angry when they killed her.

Investigators from the Calcasieu Parish Sheriff's Office

processed a scene of uncommon violence.

The victim had been beaten beyond recognition.

She had on a blue-gien skirt and it was twisted to the side. Her bra was pulled open and her shirt was down.

She's all cut up. So she did struggle. It appears she ran out of her flip-flops

because they're in two different places and her panties are near one of the flip-flops. of her

pannies are near one of the flip-flops.

Problems presented themselves straight away.

The area was so isolated there were no streetlights,

which meant no witnesses there was no

...