He helped lead what became known as the Midtown Manhattan Study, which showed that mental impairment is highly correlated with low socioeconomic status.
His friend and fellow cop killed himself. Then he nearly became a statistic as well. Why do more police officers die by suicide than in the line of duty?
Matthew Hunter, who was an officer with the Des Moines Police Department for more than two decades, suffers from PTSD after the suicide of his former partner Joe Morgan.