Catherine Marie Isbister, who frequented the homeless camp downtown this fall, has not been seen by family in two months
Jeffrey Kizmann, Robert Mar and Robert Callender arrested inside Hazel Street house on Nov. 10
The 78-year-old succumbed to her injuries; a 69-year-old woman was arrested on Hope River Road shortly after the incident
The 19-year-old woman was in an area popular with homeless campers, officials say.
Mom took son to holistic clinic before death