In the investigation of a series of killings, as in serial murder cases, the investigator should concentrate most of his or her efforts on the first established case. This theory is based
upon the premise that the serial killer usually makes most of his mistakes during the first kill.

Question

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The theory suggests that a serial killer is more likely to make mistakes during their first crime due to inexperience, providing more evidence for investigators to work with.

In the Investigation of a Series of Killings, as in Serial