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July 11, 2017 > New evidence prompts police to reopen cold case

New evidence prompts police to reopen cold case

Submitted By Geneva Bosques, Fremont PD

Detectives with the Fremont Police Department are asking the public for help in providing new information in a missing person case from 1989.

Newly discovered physical evidence and witness statements in the disappearance of Sheri Lynn Muhleman of Fremont have led police to believe that she may have been a homicide victim.

According to police, Muhleman was last seen around 9:30 a.m. Monday, Feb. 27, 1989 by her boyfriend, Michael Abraham and his sister, Catherine Abraham, at Michael AbrahamÕs house on the 3400 block of Decoto Road in Fremont. Muhleman and Abraham had a daughter together who was about 5 years-old at the time of her motherÕs disappearance.

Muhleman was last seen packing up her personal belongings inside AbrahamÕs house. Through witness statements at the time, it was believed Abraham didnÕt trust Muhleman to take care of their daughter nor the house while he was gone at a county sponsored Work Furlough Program.

However, detectives reviewing current witness statements and physical evidence located at the Decoto Road address, now believe Muhleman may have been killed, although itÕs unknown where the body is.

Police describe Muhleman as a white female with brown hair and brown eyes. She was 25 years-old at the time of her disappearance and last seen wearing a white pullover sweater and blue jeans.

The Fremont Police DepartmentÕs Crimes Against PersonÕs Unit is actively investigating this case due to potential new evidence. Meanwhile, investigators are reviewing physical evidence (originally located in 1989) and are contacting known witnesses to the disappearance.

Detectives are asking that anyone who might have information that could help investigators crack the case to call Detective Jacob Blass at (510) 790-6963 or send an email to

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