Sixteen years later, how is Mary's story of Alyssa's death far different from the one her mother told so many years earlier?

Mary's version of events is very different from the version that Dawn told when Alyssa died. In this version, Dawn was furious that Alyssa would not stop crying and she shoved some of Mary's pills down the baby's throat to try to shut her up, beat the child, then tried to perform some sort of religious ceremony to bring her back to life. Dawn would not allow Mary to call for help and convinced Mary to take the blame, saying that Mary would barely get any punishment.