We Salute WHYY For Fair & Balanced Coverage Remembering Philly’s Robin West

While Hollywood might make you believe otherwise, serial killers are quite rare. Of almost 16,000 homicide victims in the United States in 2015, just 0.3 percent (26 people) died at the hands of a serial killer, according to data from the FBI and the Serial Killer Information Center, a project by researchers at Radford University in Virginia and Florida Gulf Coast University. On average, 20 serial killers were active in the United States in any given year this decade, according to the center. That’s why investigators didn’t immediately recognize that Robin, Joanne Brown, Sarah Butler, and another woman who survived an attack could have fallen prey to the same person.