April 25 : OpenAI Chief Sam Altman apologized to the Canadian community of Tumbler Ridge for failing to alert police about a banned account linked to Jesse Van Rootselaar, who police say killed eight people in a school in February before taking her own life. • In a letter dated April 23, Altman said he was "deeply sorry" that law enforcement was not alerted to Van Rootselaar's ChatGPT account, which had been banned in June. • OpenAI had earlier said it had banned Van Rootselaar's account last