Up next, a murder that stumps even veteran detectives.

It was a nasty, nasty crime scene.

And a crime that offers few clues.

There were no signs of any struggle or fight.

Was this a sex crime by a jilted lover?

Her body was positioned in a way that was very sexually suggestive.

It's hard to imagine that anybody's capable of something like this.

Until one man's words reveal a twisted motive

and a killer with a bizarre past.

Jacksonville, Florida, with its warm, sandy beaches and subtropical climate, was the perfect place for 25-year-old Cory Parker to attend college.

She liked it a lot better than the cold winters of her hometown of Rochester, New York. Corey was beautiful. She was very tall. She had a presence about her.

Some of our best times together was a girls' night in, you know, rent movies and go hang out at the house.

Corey worked her way through college as a waitress. During the Thanksgiving holiday of her junior year, she didn't show up for work,

so her fellow employees were concerned.

They thought immediately that something was wrong.

So the manager directed one of the cooks to go by her apartment to check on her.

Her apartment door was locked, but her co-worker looked inside and saw her body on the bed,

covered in blood.

This crime scene was one of the worst that this county has ever seen in terms of its just gruesomeness.

There was blood all over her bedroom, all over her body, almost as if it had been painted on her.

The scene appeared to be staged.

Corey's body was positioned in a way that was very sexually suggestive.

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