Now is not to a good time to start a rumor involving a dead woman and the guy they just caught who most likely murdered her child. Rumors on the 'net get taken as the gospel truth.
Wait until ALL the facts are in...
It makes no sence to me that a mother, even if she had an affair with some creep, would to her dying day, shield the perp. There is nothing in Patsy Rameys back round that would suggest she was that indifferent to the fate of her daughter.