The autopsy of an 84-year-old woman, whose decayed corpse was found in her home where her son had been living, showed she died of natural causes. The autopsy also confirmed that her body had not been moved since she died, nearly two years ago. Police arrested the woman’s son, Gerald A. Armstrong, 57, who lived in the house with the decaying body of his dead mother on Aug. 23. He was later released from jail on his own personal recognizance. Efforts to reach him and other family members for comment were unsuccessful. Armstrong was charged with a misdemeanor for failure to notify the coroner of a dead body and for the concealment of a dead body. The probable cause statement submitted by the Jefferson County Sheriff’s Office to the district court says that upon arriving on the scene, Deputy Tamura was greeted at the door by Armstrong, who assured Tamura that he and his mother were both fine, and that his mother was sleeping. The deputy asked to see his mother. Armstrong granted permission to the deputy to enter the residence, which is when Tamura found Dorothy Armstrong’s body on a reclining chair. Armstrong said he and his mother lived together and that she had passed away of natural causes in September of 2017. He had found her sitting in her recliner and could not wake her. Armstrong had continued to receive $1,400 of monthly income that his mother was receiving from his father’s estate. That money was directly deposited each month into a bank account he shared with his mother. Undersheriff Andy Pernsteiner said the investigation into the financial aspect is still under investigation. If the investigation finds that Armstrong was involved in fraud, that could change the charges from a misdemeanor and gross misdemeanor to a felony charge, Pernsteiner said. A pre-trial hearing is set for 9 a.m. on Oct. 9 in Jefferson County’s district court.