I thot he went to the AD
According to the grand jury report, Gary Schultz, who oversaw the police, was called to the meeting as well. Both Curley and Schultz met with McQueary, the actual witness, following this. So no, it wasn’t just the AD.
If it comes out that Paterno did know, then I won’t support him. What we know right now seems to point to the idea that in fact nobody did more than Paterno to report this, including two people who were direct witnesses.