Assertion: serial killer's murder | /r/HasProperty | committed by serial killer
Facets:
Source sentences:
text: In an identical study by criminologist Eric Hickey, he assembled a database of nearly four hundred serial killers in which he found that eighty four percent of killers were male, twenty percent were of African American descent, and that the first murder committed by a serial killer was at the average age of twenty seven and a half years old (Fox 106).
text: The length of the cooling off period can also vary between murders committed by the same serial killer.