December 18, 2012, 7:24 amA suspicious death in Washington County is now a murder investigation. Investigators say a man found his wife dead in their home on NW Pumpkin Ridge Road last Wednesday. The medical examiner later determined 50 year old Theresa Fronsman did not kill herself. Washington County Sheriff's Sgt. Bob Ray says they are looking for her neighbor, 50 year old Robert Hardison who lives in a separate home on the same property. He hasn't been seen since her body was discovered. He says Hardison is not a suspect; but they believe he has critical information in the case.