John Macdonald (psychiatrist)

John Marshall Macdonald (9 November 1920 in Dunedin, New Zealand – 16 December 2007) was a forensic psychiatrist most renowned for his discovery of the Macdonald triad of sociopathic traits and his profiling of serial killers. He published approximately a dozen books in his field.

Bibliography

• The murderer and his victim (C. C. Thomas, 1961, ISBN 978-0-398-06254-5)