CHARLOTTE, N.C. -- Fifteen summers have passed since police found the bodies of two Charlotte teens shot to death and left naked in a field.

Raylnn Chelton and Tasha Lopes were killed in 1993, and 10 years later police arrested three suspects. Pre-trial procedures have finally begun after the girls’ families waited more than a decade to learn how and why their daughters died.

On Monday, inside the Mecklenburg County Courthouse, the families heard for the first time what one of the accused killers says happened. In a statement to detectives, Antwan Sanders told police two alleged accomplices, Robert Friday and Myron Burris, used marijuana to lure the girls into their car at the Emerald Bay Apartments off Archdale Drive.

Sanders said the girls were first robbed of their jewelry. He said he stayed in the back seat as Friday and Burris ordered the girls out of the car, forced them to perform sex acts at gunpoint and then stood behind them, shooting each once in the back of the head.

Chelton’s mother, Bonnie Jones, said she can’t believe the story.

“The way he explained the girls, ah, it's just cold. I don't know how to explain it but there's got to be more to it than what he described,” she said.

Chelton’s family and police believe Sanders was more involved in the killings than his statement to police indicates. Family members said they can handle more grisly details because what they really want is justice for a girl who has now been gone longer than she was alive.

“I'll take any story I can get as long as he's convicted,” said Bonnie Legg, Chelton’s sister. “He can sit up there and tell all the lies he wants as long as he's convicted.”

Monday afternoon, an audiotape from a second statement to police was played. In it, Sanders admits taking part in the sex assault. When asked why the girls were attacked, he said it was random.

"They were in the wrong place at the wrong time," he said.

A judge is still deciding if those statements by Sanders can be heard by the jury. Once he makes his decision, jury selection can begin.