A court is deciding Thursday whether a videotaped police interview with convicted killer Paul Bernardo should be released to the media.

Bernardo was interviewed in a Kingston, Ont., jail on June 7, 2007, about the disappearance of University of Toronto student Elizabeth Bain, 22.

She has not been seen since June 19, 1990, when she told her parents she was going to her school's Scarborough campus to check the tennis schedules. Her car was found a few blocks away with blood on the back seat, but her body was never found.

Her boyfriend, Robert Baltovich, was originally convicted of her second-degree murder, and spent eight years in jail, before his acquittal by an Ontario Superior Court at a second trial one month ago.

Baltovich's lawyers have maintained that Bernardo, who confessed in 2005 to a series of rapes in Scarborough, could be Bain's killer.

Various media organizations have asked Justice David McCombs at a Superior Court in Toronto to release the 25-minute Bernardo interview, which was to be presented as evidence in Baltovich's most recent court case.

The tape was never played in court because the Crown announced at the opening of the trial it had no chance of conviction and therefore would not present evidence or witnesses. The jury found Baltovich not guilty moments later.

Baltovich's lawyers want the public to see Bernardo's demeanour during this Kingston Penitentiary interview so they can better assess his credibility.

Bernardo is serving a life sentence for the first-degree murders of Ontario schoolgirls Leslie Mahaffy and Kristen French. He was declared a dangerous offender in November 1995, which means he will serve the rest of his life in jail.

With files from the Canadian Press