As part of the police investigation, McCullough said investigators worked with forensic analysts from the FBI and the University of California, Berkeley, who determined that the recording was not authentic. “The results from that analysis indicated the recording contained traces of AI-generated content,” McCullough said.
Police believe that Darien fabricated the recording in retaliation against Eiswert, who was pursuing an investigation into the potential mishandling of school funds at the time, according to McCullough.