Who was the killer in and then there were none?

Who was the killer in and then there were none? But as we learn at the close of the novel, when a local fisherman recovers his confession, Wargrave himself is the killer. He plans the entire enterprise, selects his ten victims, buys the island, and then pretends to be one of the group.

But as we learn at the close of the novel, when a local fisherman recovers his confession, Wargrave himself is the killer. He plans the entire enterprise, selects his ten victims, buys the island, and then pretends to be one of the group.