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Case Description
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On July 9, 1988, 28-year-old white female Anna Marie Steffen was murdered in Rochester, New York. She was one of several victims in a series of killings that would later be attributed to Arthur Shawcross, a convicted serial killer known as the Genesee River Killer. At the time of her death, Anna Marie Steffen was working as a sex worker, a detail that tragically placed her within the pattern of victims targeted by Shawcross.

Her body was not discovered until September 11, 1988, when it wa ...Read More
Victim Details

Anna Marie Steffen

Female

White / Caucasian

Rochester

NY

1988-07-09

28

Anna

Marie Steffen

11/19/2025