There are two separate operations going on. In one, the FBI raided child porn websites and then gave the credit card numbers that had been used to buy images of children being raped to the police in the countries where the credit cards originated.

In the other, which I understand is the one Kelly has been questioned about, some 1960s and 1970s minor music and showbiz celebrities were accused of molesting children.

Innocent until proven guilty in all cases, no matter what crime someone's accused of.