(CBS DETROIT) – School officials at Grand Valley State University have revealed the cause of death of a freshman student.

18-year-old Taylor Derosa died last month from hypothermia.

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Investigators also say alcohol was a contributing factor in Derosa’s death.

University police say Derosa, attended several social gatherings the night before she was found dead near a campus trail.

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Authorities do not believe she interacted with anyone prior to her death.