Perhaps he was. This is the sort of thing that a normal, healthy, sane guy would likely not want to admit to, at least to the press. Perhaps it may be a factor in a future legal case.
This brings up another thing.....with the 'mainstreaming' of homosexuality, how long before homosexual rape is no longer a crime? What if it turns out he got HIV from it? He's just been given a death sentence, essentially by the combined efforts of this crazy woman and a police department that quite likely believed every word she said because she's attractive.
This whole thing is so frightening....it could happen to anyone. I've run into a few nutcases, but nothing this bad.
There's a lot of HIV in prison. You're right. He may not admit such a thing.