SANTA CRUZ (CBS SF) — Bones discovered last year have been identified as the remains of a woman who disappeared in 2012 after giving birth in a Santa Cruz maternity ward, Santa Cruz County sheriff’s officials announced Friday.

Santa Cruz resident Jeanette Susan Herum, who was 29 at the time, walked out of the Sutter Maternity and Surgery Center on Nov. 22, 2012, leaving her newborn son in the care of the hospital.

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Herum was not reported missing until 2014 because she had a history of going long periods without contacting her family, sheriff’s officials said.

The woman did not have any medical conditions that would have placed her at risk and was classified by sheriff’s investigators as a voluntarily missing adult, Santa Cruz County sheriff’s Lt. Kelly Kent said.

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Herum’s son was living with his father’s parents as of 2015.

A couple found Herum’s bones while out on a walk and notified the sheriff’s office, officials said. According to the sheriff’s office, Herum’s parents died before her remains were found.

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Sheriff’s officials are investigating the suspicious circumstances of her disappearance and death and have asked anyone with information about the case to call (831) 454-7635.