Cynthia Montoya sits in the living room of her home in Thornton, Colo., where photographs and memories of her daughter, Juliana, surround her. Juliana was 13 years old when she started using AI chatbots, and within a year she died by suicide. Jimena Peck for NPR hide caption toggle caption Jimena Peck for NPR Cynthia Montoya's daughter, Juliana, was 13 when she began talking to AI chatbots. It was 2023, and the technology was only beginning to enter widespread use. When Juliana died by suicide t...