Amber Ashfaq was growing concerned for her co-worker Karen Navarra. Karren, who had worked with Amber as pharmacy technician at Reginal Medical Center in San Jose California hadn't been known for missing days for even being late in her last 27 years of employment.

And yet Amber hadn't heard from her friend despite both calling and texting her.

So, on September 13, 2018, Amber would decide she need to go and check on Karen to make sure everything was ok with the 67-year-old.

Instead, what Amber would walk into that afternoon was a horrific scene. Karen was dead.

Karen's murder did not make sense, Karen was a kind woman without any known enemies, who could have wanted to kill her?

The answer is one that would completely shock those working on this case- and like the case of Nicole Vanderheyden the answer would be found due to a Fitbit.

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Sources:

A Brutal Murder, a Wearable Witness, and an Unlikely Suspect | WIRED

Caught in the Net - S1 E1 Heart Rate & Time - ID GO (investigationdiscovery.com)

Photo Source:

Caught in the Net - S1 E1 Heart Rate & Time - ID GO (investigationdiscovery.com)