sexual abuse case against jerry sandusky say they got one fact wrong. the alleged locker room assault that triggered the entire case took place a year earlier than they thought. two penn state officials say that means the statute of limitations has expired in the charges against them. the hearing in the sandusky case is set for tomorrow. so one fact wrong but, sunny, that's a key fact. now we're dealing with statute of limitations. >> it's possible it goes away. maybe not all clear. my understanding is perhaps one of the counts gets dropped, perhaps not both. but it's really significant. bottom line is, i guess mcqueary must have thought the locker room shower incident took place in march 2002. now apparently it was february 2001, 13 months earlier. and 13 months would make all the difference for a statute of limitations issue. >> you think for his sake he would remember something that -- >> should be engrained in your memory. >> you remember the year, maybe not the month, but at least the year. >> so the question is, does this -- his credibility really take a hit at this point? >> and so much of the case, you know, hinges on his -- >> rides on his story.