Question: James Davidson was among the first to report the presence near Stanford of a pair of serial killers credited with killing how many people?
Sentence (from "Harpe brothers"): Micajah "Big" Harpe, born Joshua Harper (before 1768 (probably, c. 1748) – August 1799) and Wiley "Little" Harpe, born William Harper (before 1770 (probably, c. 1750) – February 8, 1804), were serial killers, murderers, highwaymen, and river pirates, who operated in Tennessee, Kentucky, Illinois, and Mississippi, in the late eighteenth century.
Relevant evidence: No