Lansing police are investigating the deaths of three people in a home on the city's west side.  They were discovered last night.  Officials confirming so far, one of the victims was a woman.  The discovery of her body is what prompted police to enter the home on West Saginaw near the Capitol.  Authorities say they believe the case was a double murder-suicide. While the investigation is continuing, police say there is no need for concern for area residents.