You may remeber Nifong's demonstration of how the attack occurred, and how the AV scratched at the guy's arms.
Then there was no DNA match.
To counter that, a talking head said they had put on long sleeves.....
This is a bit of conjecture.
I wonder if Evans was indicted in part because he told the police there could not have been a rape because she was never out of his site the whole time she was in his house?
That is the danger of talking to the police without an attorney.