Serial killing in schizophrenia.

Area of Science:

• Psychiatry
• Criminology
• Psychology

Background:

• Serial criminality is a rare phenomenon that captures multidisciplinary interest.
• Understanding the psychological underpinnings of serial offending is crucial for forensic science.

Observation:

• A case of a patient with chronic psychotic disorder is presented.
• The patient committed multiple murders over a nine-year period.

Findings:

• The serial murders were motivated by a specific type of delusion.
• The underlying cause was identified as Frigoli syndrome, a rare delirium of misidentification.

Implications:

• This case highlights the importance of recognizing rare psychiatric syndromes in forensic evaluations.
• Further research into Frigoli syndrome may offer insights into the motivations behind certain types of serial offending.