Nation Mississippi man Donald Triplett, first person diagnosed with autism, dead at 89 June 16, 2023June 16, 2023Eric Lagatta, USA TODAYComments Off on Mississippi man Donald Triplett, first person diagnosed with autism, dead at 89 Donald Triplett, a Mississippi man who became known as the first person diagnosed with autism and was the subject of 'In a Different Key', died at 89.
