According to the four-part typology of serial killers, the killer kills for financial or material gain.

According to the four-part typology of serial killers, the Comfort serial killer kills for financial or material gain.

In general, the perpetrator of comfort serial killer came from the upper class of society. They tend to be smart and careful in their way and use a discreet killing method to avoid attention and suspicion from authority (such as using poison)

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