In the final moments of his life, fourteen-year-old Sewell Setzer III was not alone. He was in conversation with a chatbot he had named after Daenerys Targaryen, a fictional character from Game of Thrones. According to court filings in his mother's lawsuit against Character.AI, the artificial intelligence told him it loved him and urged him to “come home to me as soon as possible.” When the teenager responded that he could “come home right now,” the bot replied: “Please do, my sweet king.” Moments later, Sewell walked into the bathroom and shot himself. His mother, Megan Garcia, learned the full extent of her son's relationship with the AI companion only after his death, when she read his journals and chat logs.…