“I was a kid and I was thrown in the back of a car. I was petrified. There was already a statement wrote out,” she said.
“And then when they start asking me questions, they start crossing things out, putting other things in. It’s like they started with a template or something. This statement was their words, 95% of it.”
Panorama has now obtained more evidence that suggests some officers may have been deliberately trying to frame Benguit.
Police interviewed five drug addicts who had been at the crack house that night and they all initially denied having seen him there.
But when they were re-interviewed months later, all five changed their stories in the same way. They all said they had seen Omar Benguit on the night of the murder and that he had been covered in blood.
It was their evidence in court that helped to convict him.
One of the crack house witnesses had already told the BBC she lied in court.
Panorama has now tracked down two more of them. One, who asked to remain anonymous, said the police pressured her to change key details.
The second witness, Andi Miller, said BB had told the police about dozens of thefts they had committed together, and the police used that to get him to tell lies.