Officials at Santa Rosa Memorial Hospital said they're nearing completion of an in-house investigation into the death of a discharged patient whose body was found on the edge of its campus. Michael Torres, 49, was found dead near the southwestern corner of the hospital grounds about 8 a.m. last Tuesday, approximately 12 hours after he received care for undisclosed reasons. Todd Salnas, COO of St. Joseph Health System-Sonoma County, said the hospital is pushing hard to shed light on what occurred. "I would say the investigation should be completed in a matter of days," he said. Some members of Torres' family have expressed frustration with the limited information they've received from the hospital about events leading to Torres' death. They have retained an attorney seeking Torres' medical records and have passed out fliers looking for witnesses to his final hours.