08/20/2026
In October 1994, 32-year-old Shirley Duguay disappeared on Prince Edward Island, Canada. Her abandoned car was found with blood inside, and months later her body was discovered in a shallow grave. Near the remains, investigators recovered a leather jacket stained with Shirley’s blood and containing several white cat hairs.
Detectives remembered that Shirley’s estranged partner, Douglas Beamish, lived in a home with a white cat named Snowball. Scientists developed a way to compare DNA from the hairs on the jacket with Snowball’s DNA, something that had never before been used as evidence in a criminal trial. The testing strongly linked the hairs to Snowball.
Beamish was convicted of second-degree m*rder in 1996. The case became a landmark in forensic science because a household pet provided one of the most important links between the suspect and the evidence, opening the door for animal DNA to be used in later criminal investigations.