Final answer:
In Oscar Wilde's novel 'The Picture of Dorian Gray,' James Vane meets a tragic end when he mistakenly shoots and kills Dorian Gray, unaware of his supernatural immortality.
Step-by-step explanation:
In Oscar Wilde's novel 'The Picture of Dorian Gray,' James Vane meets a tragic end. James is the brother of Sybil Vane, a young actress who falls in love with Dorian Gray. When Sybil ends her own life, James becomes convinced that Dorian is responsible, and he vows to avenge his sister's death. James stalks Dorian and eventually confronts him at a shooting range. However, he mistakenly shoots and kills Dorian, unaware of Dorian's supernatural immortality. James' death brings about the final resolution of the novel.