[scottwhadl]

There was a line by Palpatine to Luke something like this: Join me and replace your father by my side. I think it was during the battle in the second death star. In fact I think it was at the point where Luke had Vader at his mercy and could have killed him that Palpatine said that. Vader then knew he was done for so he tossed Palpatine into the pit then Vader died no more Sith.