Provincial police say a couple found dead in their Springwater Township home last weekend were shot to death.
Police say a post mortem examination at the Office of the Chief Coroner in Toronto was completed late Friday afternoon.
It was determined that the cause of death of both Donald White, 53, and his 51-year-old wife Lauredith is consistent with being shot.
A co-worker called police last Sunday morning after Donald White failed to show up for work at a Wasaga Beach grocery store.
When police got to the home northwest of Barrie, they found human remains and a 26-year-old man who lives in the home.
The couple's son Gregory White is charged with two counts each of first-degree murder and interfering with a human body and is to appear in Barrie court on Monday.