The boys he took an interest in were often of the same specific age and the same stage of puberty. Both accusers were 13 at the time of the alleged rape.
The boys never seemed to stay around when they became teenagers and adults. Few if any of them seem to have maintained their relationships with him past a certain age.
He surrounded himself with children who were terminally ill, had single parents, were very poor or had some other personal problems. Generosity? Or singling out a weak, shy, needy, lonely and defenseless child, as pedophiles often do? Or both?
He lavished money, time and attention on children he didn't abuse, maybe to gain the trust and goodwill of parents and guardians and the goodwill of the public and community. Typical of a pedophile.
He had few companions and friends of his own age- Uri Geller and Deepak Chopra seem to be exaggerating their relationship with him and he didn't seem all that close with other people who say they were friends, such as Liz Taylor and MC Hammer- and seemed more comfortable and relaxed around children than around adults.
Again, this isn't hard evidence. Again, this doesn't prove he was a pedophile. Still, when you stack them up and take them all together, they do seem to point to it.
The parents of these kids, though. What were they thinking? A complete and total stranger and they left their children all alone with him for weeks, something you wouldn't do if he was your own brother or your closest friend.