In 2005, the FBI hosted a multi-disciplinary symposium in San Antonio, Texas, which brought together 135 experts on serial murder from a variety of fields and specialties with the goal of identifying the commonalities of knowledge regarding serial murder. The group also settled on a definition of serial murder which FBI investigators widely accept as their standard: "The unlawful killing of two or more victims by the same offender(s) in separate events". Serial homicide researcher Enzo Yaksic found that the FBI was justified in lowering the victim threshold from three to two victims given that serial murderers from these groups share similar pathologies.
In 2005, the FBI hosted a multi-disciplinary symposium in San Antonio, Texas, which brought together 135 experts on serial murder from a variety of fields and specialties with the goal of identifying the commonalities of knowledge regarding serial murder The group also settled on a definition of serial murder which FBI investigators widely accept as their standard: "The unlawful killing of two or more victims by the same offender(s) in separate events". Serial homicide researcher Enzo Y.aksic found that the FBI was justified in lowering the victim threshold from three to two victims given that serial murderers from these groups share similar pathologies.