RCMP say a body was found last Friday inside a vehicle parked in front of the hospital in Hinton, about 300 kilometres west of Edmonton.
A 53-year-old woman who was admitted to the hospital with non-life-threatening injuries was charged this week with aiding suicide.
Court documents show the dead person was also a woman, but her age was not disclosed.
A publication ban prevents identifying the pair.
The accused has been remanded in custody and is to appear in Hinton court on June 5.
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