Anna May Karpinski was 22 when she died of a single gunshot wound on the night of April 20, 2017, in West Branch, Michigan. Emergency responders found her at a residence and she was taken to a nearby hospital, where she succumbed to the injury. She was a mother and worked as a manager at a local restaurant.

The West Branch Police Department opened an investigation and early statements indicated there was no unknown person at large, which suggested the person involved was likely known to Anna. The case appears to have gone cold, and the circumstances of her death and the identity of the person responsible remain unresolved.

If anyone knew Anna, her movements that night, or has information that could help the investigation, please come forward.