Police Use Fitbit Data to Charge 90-Year-Old Man with murder

The 90-year old suspect when to his stepdaughter's house at San Jose, California for a brief visit. Five days later, his stepdaugter's body, Karen was discovered by a co-worker in her house with fatal lacerations on her head and neck. The police used the data recorded by the victim's Fitbit fitness tracker to determine the time of the murder. It was been reported that the Fitbit data showed that her heart rate had spiked significantly around 3:20 p.m. on September 8, when her stepfather was there.Then it allegedly recorded her heart rate slowing rapidly, and stopping at 3:28 p.m., about five minutes before he left the house.

Source: https://www.nytimes.com/2018/10/03/us/fitbit-murder-arrest.html

Author: Christine Hauser Pubsliher: New York Times