Which techniques have psychological profilers such as David Cantor used to identify unknown offenders in 'stranger murders' ?

Question

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Psychological profilers like David Cantor use characteristics of the victim, traces of behaviors left at the scene, and things done by the offender to the victim to identify unknown offenders in 'stranger murders'. These techniques help in creating a profile of the offender based on the psychological evidence left behind. DNA samples, while crucial for forensic evidence, are not a technique used by psychological profilers but rather by forensic scientists.

Which Techniques Have Psychological Profilers Such as David Cantor Used