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BLOOMINGTON — Charges are expected to be amended in Hennepin County against a man accused of strangling his elderly mother in Bloomington now that she has died at a hospital in Edina.

The Hennepin County Medical Examiner’s Office said 82-year-old Lila Bulygo died of complications due to strangulation May 4 at Fairview Southdale Hospital.

Bulygo was found unconscious by police April 29. Her 56-year-old son is charged with second-degree murder. James Bulygo told investigators he is mentally ill and had been arguing with his mother.