After several delays, the fourth trial of Robert Badgerow in the first degree murder of Diane Werendowicz is underway in Kitchener.
The nursing assistant was found dead, partially clad, in a Stoney Creek ravine in 1981.
Legal arguments delayed the opening statement from the Crown for two days.
The jury has heard from two witnesses so far and has seen the crime scene photos.
Badgerow is the first person in Canadian history to face four trials for the same crime.
The trial is expected to last four months.
One of the 14 jurors selected to hear the case has been released without explanation.