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LOUISVILLE, Ky. (WDRB) -- Louisville Metro Police say a Louisville man has been charged with murder after he made an unexpected confession.
Police say 34-year-old David Satterfield was broke and terminally ill when he called police on Jan. 27 to confess to murdering 86-year-old Marcelline Vale in 2007. At the time, she was a patient at Parkway Nursing and Rehabilitation Center on Eastern Parkway in Louisville.
According to police, Satterfield admitted to intentionally killing Vale with an injection of insulin. He was working as a certified medical technician at Select Nursing Services, a company that provides temporary workers to medical facilities like Parkway Nursing.
Investigators tell us when Satterfield called police on Monday, he asked to be picked up, and later confessed to Vale's murder during interviews.
"He was broke, no place to live, and he had a terminal illness," said Sgt. Donny Burbrink with LMPD's Homicide Cold Case Unit. "He decided he wanted to come clean and clear his conscience."
LMPD officials tell WDRB they have been investigating Vale's death as a homicide since 2007, and had been looking at Satterfield as a person of interest.
Vale died four days after allegedly being injected with the insulin. Police say Vale did not have diabetes and was not on an insulin prescription.
According to the police report, the Medical Examiner's opinion on Vale's cause of death states that her death was consistent with "metabolic encephalopathy arising as a consequence of hypoglycemia associated with an elevated insulin level, likely as a result of exogenous insulin administration."
Police say they are trying to determine if Satterfield may have had any involvement in other deaths. They are not ruling out that there may be other victims.
Joe Okruhlica, administrator at the Parkway Medical Center, released the following statement after Satterfield's arrest:
"We are pleased that a person has been arrested in the connection of the tragic death of Mrs. Vale back in 2007. Our hope is this will give some closure to Mrs. Vale's family and the facility. Parkway fully reported and cooperated with authorities at the time of the incident. Authorities found no wrong doing by the facility."
Satterfield's former employer, Select Nursing Services, is no longer in business. The former owner of the company declined to comment on the arrest.