(Santa Monica, CA) -- An investigation is ongoing after the former mayor of Milwaukie and his wife were found dead in their Venice, California home last week. Police are investigating to determine whether it was a murder-suicide involving Jeremy Ferguson and his wife Mandy Zelinka. Investigators have ruled Zelinka died from a gunshot wound as a result of homicide. Zelinka was a popular hair stylist in Portland, were she founded and co-owned Salon 77 in the Pearl District. The couple were found dead in their Venice home last Tuesday.