Ramona Ann Turner, 54, was shot to death inside her Saint Paul home in the Dayton’s Bluff neighborhood on September 17, 2015. The killing followed years in a long-term relationship that had recently deteriorated; two weeks earlier Turner had told her partner of 40 years, John Weisner, she intended to leave him.

One of the couple’s two sons intervened immediately, taking the gun from his father. Weisner then inflicted stab wounds on himself with a kitchen knife. Weisner was arrested, charged in connection with Turner’s death, pleaded guilty, and in March 2016 was sentenced to 25 1/2 years in prison.

What details about Turner’s life or the household might help explain how this long relationship reached such a violent end?