(Keizer, OR) -- A suspicious death in Keizer is now being investigated as a homicide. Police say on July 17th, 59-year-old Walter Peca was found deceased in his home. Police are treating the investigation as a homicide. Detectives are looking for Peca's wife, 56-year-old Shelly Rae Peca. She was last seen leaving Keizer on July 16th in a red or maroon 1999 Ford Explorer that was seen the following day in Brewster, Washington. The Oregon license plate is 716 QAX. Anyone with information about her location should contact Keizer Police, and don't approach her.