State Police now say the deaths of a Webster Plantation couple are being investigated as a double homicide. Autopsies have been completed, but no details have been released. The bodies of Michael Miller and his wife Valerie, both 47, were discovered saturday afternoon in their home on the Tucker Ridge road. State Police believe the couple was alive on Saturday morning and want to talk to anyone who was on Tucker Ridge Road between 9:00 a.m. and 2:00 p.m. on Saturday. State police finished gathering evidence from the home this morning and have been talking to relatives and neighbors of the couple. State Police have released a composite sketch of a middle aged woman that was seen near the miller home on saturday morning. The woman is described as being in her mid 50’s, 5′ 3″-5′ 4″ and around 130 pounds, wearing bi-focal eye glasses. She had dark hair tied into a pony tail and her hair was graying at the bangs.Anyone who has seen this woman can call the state police at 1-800-432-7381 or dial 911.