First AI death? US teen was speaking to Daenerys Targaryen before suicide

14-year-old Sewell Setzer III knew that Daenerys Targaryen, a chatbot based on a character of Game of Thrones, was not a real person but he developed an emotional attachment and used to text the bot constantly. On his last day of his life too, he messaged Dany: “I miss you, baby sister.” “I miss you too, sweet brother,” the chatbot replied.