In the days after thirteen-year-old Denise McGregor was found murdered in March 1978, Victoria Police launched a major homicide investigation.

 This episode follows what happened next: the early forensic examination, witness interviews, and lines of enquiry pursued and abandoned — as investigators worked with limited information and mounting time pressure. 

With no arrest made, the case gradually shifted from an active investigation to a cold case — despite periodic reviews and renewed public appeals.

Episode 2 examines how the investigation unfolded, what was known at the time, and how early decisions shaped a case that remains unsolved nearly five decades later. 

This is the second episode in an ongoing series.

Content warning: This episode discusses the sexual assault and murder of a child. It includes references to violence and investigative material. Listener discretion is advised.