The killer in Agatha Christie's And Then There Were None is Justice Lawrence Wargrave. He is a retired judge who orchestrates the entire series of murders on Soldier Island. Wargrave's motivation is to punish those who have committed crimes but escaped justice, acting as a self-appointed executioner. He carefully plans the order of the killings, starting with those he deems least guilty and ending with the most guilty, and even fakes his own death to avoid suspicion. In the epilogue, Wargrave leaves a written confession explaining his motives and methods before ultimately causing his own death to evade trial