Answer:
Calvin Goddard
Step-by-step explanation:
The Valentine's massacre was a massacre allegedly ordered by Al Capone against five members of the “North Side Gang” band (Dr. North Side Gang) plus Dr. Reinhardt H. Schwimmer in Chicago on Valentine's Day (February 14) 1929. Within these facts, Calvin Goddard was responsible for the scientific investigation of the crimes, this scientist identified the bullets and weapons used in the murders.