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Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm
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Method of identification: Catching serial killers.

Brittany Hood1, Paige White2, Jenna Bunner2

  • 1Texas A&M International University, Department of Social Sciences, USA.

Forensic Science International
|July 6, 2022
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Summary

Serial homicide investigations utilize 22 methods, with DNA, prior offenses, and surviving victims being most common. Law enforcement strategies for identifying serial killers are evolving over time.

Keywords:
DNAHomicide investigationIdentificationSerial homicideTechnology

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Area of Science:

  • Criminology
  • Forensic Science
  • Criminal Justice

Background:

  • Violent crime, including serial homicide, has decreased in recent decades.
  • Despite this trend, research on serial homicide investigation methods remains limited.
  • Understanding these methods is crucial for effective law enforcement strategies.

Purpose of the Study:

  • To examine the timeline and methods used in serial homicide investigations.
  • To identify the most effective law enforcement techniques for apprehending serial killers.
  • To analyze trends in investigation methods over time.

Main Methods:

  • Analysis of 671 serial homicide investigations.
  • Identification and categorization of 22 distinct investigative methods.
  • Examination of temporal trends in method usage across decades.

Main Results:

  • The most frequent investigative methods included: surviving victim accounts, DNA evidence, information from associates/family/friends, fingerprints, prior offending history, body discovery location (home), and unrelated arrests.
  • Significant variation in methods was observed over time.
  • Specific trends in the application of different investigative techniques were identified across decades.

Conclusions:

  • The study provides a comprehensive overview of serial homicide investigation techniques.
  • Findings highlight the evolving nature of law enforcement's approach to serial killer investigations.
  • The research offers valuable insights for improving future investigations and case clearance rates.