When it becomes obvious that a forensics expert raped and murdered a student, the investigation focuses on a criminology professor that Cragen arrested decades earlier for similar crimes.
When it is suspected that an expert in forensics is responsible for the rape and murder a local student, the focus of the investigation hones in on a criminology professor that Cragen arrested decades earlier for similar crimes. It's then up to Cragen and his team to discover if the professor is the perpetrator or being set up by a bitter rival.—Anonymous