Final answer:
Wilson shows up at Tom's house after Myrtle's death to confront him about her death and demand answers. He goes to Tom's house to confront him and demand answers. This confrontation leads to the tragic ending of the novel.
Step-by-step explanation:
Wilson shows up at Tom's house after Myrtle is dead because he wants to confront Tom about his wife's death and seek justice.
Wilson, who learns that Gatsby's car was involved in the accident that killed Myrtle, assumes that Tom was driving the car and is responsible for her death.
He goes to Tom's house to confront him and demand answers. This confrontation leads to the tragic ending of the novel.