University of Toronto student Elizabeth Bain disappeared from Scarborough in 1990.

Her boyfriend, Robert Baltovich, spent nearly a decade behind bars for her murder before being found not guilty in a retrial in 2008.

Baltovich says they had the wrong guy and he wants to set the record straight. He has assembled an investigative team. A class at the University of Guelph-Humber in Toronto has also been looking at the case with the assistance of a former police officer.

“I want to be able to prove my innocence beyond any shadow of a doubt, but part of it too is because I now believe I know what happened and who is responsible. I want to ensure that this individual is held accountable and is brought to justice,” said Baltovich.

Retired Toronto Police officer John Irwin is a professor in the Criminal Justice Department at the University of Guelph – Humber. He says he was part of the investigative team that was looking into Elizabeth’s disappearance back in 1990.

“Rob has been, since 1990 potentially, the only person who is still trying to find out what happened to Elizabeth Bain,” said Irwin.

This is one of the cases that will be featured on the new season of the “Tracking a Killer: The Cold Case Files” podcast. Episode 4 is now available on the Frequency Podcast Network or wherever you get your podcasts.