Man charged with killing his stepdaughter after her FitBit evidence

Murderer, 90, charged with killing his stepdaughter after her FitBit showed her heart stopped beating when he visited her California home

  • Man charged with murder of woman Karen Navarra after evidence from FitBit 
  • Police say murder victim’s Fitbit, a hi-tech wristband, disproves suspect’s alibi
  • Karen Navarra, 67, found dead inside a house in California with fatal injuries 
  • CCTV evidence places Anthony Aiello, 90, at the house of victim Karen Navarra

A man has been charged with killing his stepdaughter after her Fitbit showed her heart stopped when he visited her.

CCTV evidence places Anthony Aiello, 90, at the house of Karen Navarra, 67, who was later found inside with fatal injuries.

And police say her Fitbit, a hi-tech wristband which monitors vital signs and movement, disproves Mr Aiello’s alibi.

Aiello, aged 90 and pictured above, told police he visited her home to take her homemade pizza and biscotti but left after only 15 minutes

Miss Navarra’s heart rate spiked at 3.20pm on September 8 before rapidly slowing and stopping eight minutes later.

According to surveillance video obtained by police in San Jose, California, Aiello’s car was parked outside her house between 3.12pm and 3.33pm.

Aiello’s case has been dubbed the ‘Fitbit murder’. 

The investigation began when a concerned colleague found Miss Navarra at her home with her throat cut on September 13.

A knife had been put in her hand to suggest it was suicide.

CCTV evidence places Anthony Aiello, 90, at the house of Karen Navarra, 67, on the street above, who was later found inside with fatal injuries [File photo]

Aiello told police he visited her home to take her homemade pizza and biscotti but left after only 15 minutes.

But detectives were able to piece together a different story using the surveillance footage and the data from her Fitbit.

Bloodstained clothes were also found in Aiello’s home, police said in a report. He was arrested over the murder and has appeared in court where he did not enter a plea.

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