California Missing Persons Case Reignited 27 Years Later As Police Search Boyfriend’s House

Investigators looking for Ylva Hagner have been digging at the property of a NASA scientist.

Verity Partington

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Ylva Hagner, missing since 1996 (Image: California District Attorney’s Office)

A cold missing persons case dating back to 1996 has been reinvigorated after it was revealed that authorities have been searching a property linked to the victim.

Ylva Hagner, 42, was originally from Sweden but had moved to California and was employed in marketing for a software company at the time of her disappearance. She had also enrolled on a master’s degree for mature students at Stanford University.

Last known movements

She was last seen at IXOS Software in Belmont by an executive on October 14th 1996. He had left at around 9:30 PM, but Ylva was still working and would typically lock up when she had finished her shift.

Belmont Police Detective Mike Speak told the San Mateo Daily Journal in 2017 this was not unusual at the time, with young professionals in technology often working ‘Silicon Valley hours’ and leaving offices late.

However, Ylva failed to return to the house she shared with two roommates in Palo Alto that night and did not make it back to work the next day. Her employer reported…

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Verity Partington

A writer and author of crime thrillers living in the UK. Partial to books, stationery, papercrafts and walking. You can find her books on Amazon here: https://a