Question: who was the murderer in and then there were none

title: Agatha Christie: And Then There Were None
text: Following the game 's completion , the player is given one last challenge that will reward them with the original ending to the book . The original ending to the book , where Wargrave is the killer . Dying , he wants to mete out justice personally to criminals who have escaped punishment , who he has invited to the island . The alternate ending details the events of the book , And Then There Were None , wherein all the guests on the island are killed by Wargrave except for the last two , Vera and Lombard . Vera then shoots Lombard , thinking him the murderer ( since Wargrave has faked his own death ) , and then hangs herself . Wargrave then shoots himself . 

Answer: answer: In And Then There Were None, Wargrave was the killer in both original and alternate endings of the book.