After the St. Valentine’s Day Massacre on February, 14, 1929, one of the nation’s foremost forensic scientists, Dr. Calvin Goddard, was hired to examine the ballistic evidence. Goddard compared the bullets collected from the crime scene with test bullets fired by a range of firearms. He eventually found that the .45-caliber bullets from the crime scene matched two Thompson submachine guns confiscated at the rural Michigan home of a notorious Mob hitman. Some of the ballistic evidence collected from the Massacre scene is on display here.
Dr. Calvin Goddard, shown in his U.S. Army uniform, was a pioneer in the new field of ballistics testing when the Cook County coroner took a scientific approach to investigating the Massacre and brought him into the investigation. Goddard's work proved that every weapon makes characteristic marks on a bullet and a cartridge shell.
Goddard’s glasses. These round-framed glasses were owned by Dr. Calvin Goddard. This style of frame was common in the 1920s and used by both men and women.
John May was a 36-year-old auto mechanic who worked for Bugs Moran’s North Side Gang. He was shot 10 times during the Massacre. These are two of the bullets removed from his body.
This bullet was removed from the leg of the business manager of Bugs Moran’s Northside Gang, Adam Heyer.