The trial for a man accused of killing his former girlfriend and mother of his child started on Monday morning at Supreme Court in St. John's.

David Folker, 42, is charged with the second-degree murder of Ann Marie Shirran in July 2010. Folker, who has been out on bail since Dec. 2010, is also charged with interfering with human remains.

Shirran's decomposed body was discovered in Cappahayden on the southern shore of Newfoundland by campers six weeks after she was reported missing.

Folker and Shirran's son was one year old at the time of the murder.

Folker, who has been living in Nova Scotia, appeared calm and was using his cell phone in the prisoners’ box while he waited for the trial to start.

The court room was packed full of Shirran's family and friends. Folker's mother sat in the front row, closest to her son, visibly upset.

Justice Wayne Dymond told the court that four jurors had been exempt for medical reasons, leaving three men and seven women jurors.

Dymond said two new jurors will be chosen on Monday afternoon or Tuesday morning. He expects the snag to delay the eight-week trial by one day.

The Crown told CBC News they plan to call upwards of 47 witnesses.