An autopsy has determined that someone killed a 24-year-old Eastern Michigan University student, but the cause of her death remains unknown.
Ypsilanti police said Tuesday that the medical examiner's office has ruled the death of Julia Niswender a homicide.
Police say toxicology results "have yielded no conclusive information" on how she died. Police say there were no outward signs of trauma to the body.
Niswender was a Monroe native and was an undergraduate at Eastern Michigan. Her body was found in her bedroom Dec. 11 at an apartment across the street from the campus police station.
Police say they don't yet have any suspects.