Question: How many murders cases were attributed to the serial killer on whose crimes the film L'assassino è ancora tra noi is loosely based ?
Sentence (from "L'assassino è ancora tra noi"): L'assassino è ancora tra noi is a 1986 Italian horror film written and directed by Camillo Teti, and co-written by Ernesto Gastaldi and Giuliano Carnimeo.
Relevant evidence: No