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Cold Case Files

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The Fremont Police Department’s Crimes Against Persons Unit has invested its resources into investigating and solving cold case homicides and missing persons. The Cold Case Division focuses on those cases with the highest probability of being solved with fresh leads and new forensic technology.

Our mission is to give a voice to those who can no longer speak for themselves and our our ultimate goal is to give answers and a sense of closure to the loved ones of every murder victim and missing person.

While each case is unique, most of these homicide cases have gone unsolved for years and there are no active leads for investigators to pursue. Our hope is to bring awareness by re-publicizing cold cases from time to time with the hope that someone with information will come forward. Anyone with information is asked to contact Cold Case Detective Jacob Blass at 510-790-6963 or via email.


Sheri MuhlemanSheri Muhleman
February 27, 1989
Kathy MiramontesKathy Ann Miramontes (Patino)
A.K.A. Sweetie

March 8, 1982
Hernandez-photo of victimsRMaria and Carmen Hernandez
February 1, 2004

daniel NaylorDaniel Naylor
October 5, 1982

Recent Press Release on Unsolved Cases

  • Cold Case Homicide Investigation - Unsolved Death of Maria Hernandez (Mother) and Carmen Hernandez (Daughter) - Press Release.

Solved/Closed Cold Case Files

  • 1982 Double Homicide of Mary Jane Malatag and Jeffrey Flores Atup - Press Release.
  • 1986 Double Homicide of Michelle Xavier and Jennifer Duey - Press Release.
  • 1990 Murder of Jack Upton - Press Release.

Reporting Anonymously

We gladly accept anonymous information. Our silent witness hotline number is 510-494-4856. You can also send an online anonymous tip or text "TIP FremontPD."