Were did you get this from? The grand jury report, top of page 7, does NOT say that both McQueary and his father went to Paterno's house to talk with Paterno.
"The graduate assistant went to his office and called his father, reporting what he had seen. His father told the graduate assistant to leave the building and come to his home. The graduate assistant and his father decided that the graduate assistant had to promptly report what he had seen to Coach Joe Paterno ("Paterno"), head football coach of Penn State. The next morning, a Saturday, the graduate assistant telephoned Paterno and went to Paterno's home, where he reported what he had seen."
In one of the articles I read, it was reported that McQueary went WITH his father to see Paterno the next day. IO’ll try and find it for you..