At the age of 50 - Finding out your sister was abused sexually

My father was diagnosed Oct 11 2012 with stage 4 cancer. On his deathbed he confessed to my mother he had sexually abused my sister Amy - who is 14 months younger than me - since she was four. Amy went to him in the hospital and he asked her for forgiveness, WHICH SHE GAVE. The rest of the family want to deny this ever happened. I am the oldest son of Don and Sharon Cavanaugh and have 4 brothers: Patrick Cavanaugh (Ann Arbor - wife Betsy Sherman of Ann Arbor he is a banker ) - Ryan Cavanaugh, Ethan Cavanaugh, and Adam Michael Cavanaugh and my sisters Amanda Gracey (Grand Rapids Michigan)Bridget Flint and hubby Brian and Beth Gonzalez. They all know my father admitted his actions but no one will reach out a hand to the

sister who had been abused and born with Aspberger's. Amy's blog is here where she details her growing up: http://aspergersthealien.blogspot.com/2014/01/raped-at-13-by-my-fathertrigger-warning.html The elephant is in the room and no one - not even my foolish mother - will acknowledge this. My life has totally changed and my beliefs turned upside down since this admission. I am a gay man with a partner Michael whom I am marrying this June 2014