Keith Weins is charged with second-degree murder in the death of Lynn Kalmring in the couple's home in Penticton in August 2011.
Court heard that forensic pathologist Dr. William Currie attended the murder scene the morning after Kalmring's body was found.
Currie testified the woman was on the bedroom floor with a devastating gunshot wound to her face and a knife in her left hand.
He told the jury that if the victim was holding something in her hand, she would have dropped it after being shot in the face at close range.
Court has heard that Kalmring was killed after the couple had a fight. (CKFR)