Originally posted by PRIVATE INVESTIGATOR 1
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There is rational choice in moving away from a crime scene, stopping to get yourself together, discarding what you don't feel you need anymore; and then walking on in a more composed fashion. Providing there is not a search going on around you at that point.
There is no rational choice in committing a murder, for which you will hang, escaping from the crime scene; and then returning to a street somewhere in the region of 5 to 10 minutes from the crime scene at a time when you know there will be a search going on (supposedly returning somewhere between 40 minutes and 75 minutes after the crime).
It's not sufficient to claim "we can't know" because it's a serial killer.
Very, very few serial killers display evidence of psychosis when monitored and observed after they have been apprehended. And, these sorts of murders are committed for psychological, ephemeral pleasure. These people remain governed by rational choice as we all do. There is definitely something wrong with them and they're not normal, but that doesn't mean they're stark raving mad and have lost all human instinct.
The studies of these people conclude that serial killers share common traits and behaviours, and as such we can get an idea of what drove this man and what his behaviour was likely to be.
One thing that is common among serial killers, is that they like to go back to the scene of the crime to relive the experience. That wouldn't include dropping an apron 5 or 10 minutes away, mind you. In the event he did go back to the crime scene, which according to studies isn't out of the ordinary for them, then you'd have to assume it wasn't at the time when the police were there and there was a search going on: rational choice.
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