It was implied to me that the medical definition of a paedophile is someone who is exclusively sexually attracted to that age group, which is why they try to be surrounded by young people in their workplace etc. because their not emotionally able to maintain relationships with adults, they only feel comfortable around and attracted to much younger people.
The issue is the exclusivity. If thats the case then presumably they can't hold other labels, either they are one and are only attracted to people that young and would have no interest in older teens or adults, or their not one at all (unless what I was told was wrong but it was a close relative who is a social worker who told me that and I'm pretty sure she'd know what she was talking about).
It does seem that with JS, he was a particularly peculiar 'character' as it were - someone else previously stated that maybe he should have been labelled with a condition we're yet to discover. I think its pretty safe to say that at the very least he was a sociopath with psychopathic tendencies and a child molester though, so it seems.
Don't forget he also accused of abusing a man who was in his 40s at the time and the police also said 'he groomed a nation'
So you have to give him the credit that he was some sort of super human being to be in the public eye and evade discovery in 50+ years (not making one single mistake) and according to the press had such a wide variety of sexual tastes (including the dead) that no normal human could possibly have. So maybe he was from another world?