The deaths of two people in their Lake Bonavista home are now being investigated by police as a double homicide. 

The couple has been identified as Don, 59, and Roxanne, 56, Carlson.

Fire crews were called to the southeast home on Lake Erie Road on Saturday after family members found one person dead and another in distress. The second person later died. 

The call was put in as a carbon monoxide complaint, but that was later ruled out. 

The couple was last seen Friday night at 9:30 p.m. MT.

Anyone with information about where they were between that time and when they were found around 1 p.m. MT Saturday are asked to contact police.