I heard her say this also when she spoke on one of the HLN shows - I think it was on Nancy Grace - and this was before the trial had ended ...
The only one who truly knows who the father is is Casey (at least one would think) ... so if she hears about this woman coming forward now, it may just roll off Casey's back because she knows it can't be true ... however, if she knows that it is true, then maybe, even if the grandmother doesn't have a case in the end, it will at least give Casey a little bit of "agita" (an Italian word for heartburn

) for a time being ... just sayin'

...