In Breaking News today... officials revel an autopsy shows Thomas and Viola Hefton had gun shot wounds which caused their death.
The autopsy was done Wednesday at Sparrow Hospital's Pathology Department.
The couple was murdered earlier this week in what police are calling a robbery gone bad.
They had been in town from Arizona house sitting for family members.
Police say they still do not have suspect at this time and are continuing to investigate the double homicide.