I saw my dad Tuesday and Saturday morning I found him on the floor dead . He was lying on his left side with his head own his left biceps. Left arm and left side of face was blue with small spider web like vines. He bum left cheek was also blue right to his crack. Right cheek was normal right arm and belly was normal he was quite cold and somewhat stiff. There was no feces or vomit near him . However his dog was also in the house . He was 73. That Tuesday doctor told him was good for 20 more years . What do you think killed him and how long was he dead .