Fitbit data used to indict a 90-year-old man in a case of macabre and macabre murder



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Close-up view of the lower side of the Fitbit Alta HR, which tracks users' heart rate
Enlarge / Fitbit Alta HR, a fitness bracelet with continuous heart rate

Californian police in San Jose, California, charged Anthony (Tony) Vincent Aiello, 90, with the horrific death of his 67-year-old daughter-in-law after receiving spectacular health data from his HR Fitbit device Alta.

The daughter-in-law, Karen Navarra, was found dead in her home on Thursday, Sept. 13, after multiple deep cranial wounds and immediately disabling, probably caused by a hatchet or hatchet, according to a police report and an autopsy. His Fitbit data indicated the exact times these injuries occurred. His heart rate increased dramatically and then fell to nil. The timing of this fall led to Aiello's arrest.

A co-worker discovered the murder of Navarra when she checked it after she did not show up for her position as a pharmacy technician at the regional medical center, where she had been working for 45 years. Police arriving at the scene said they found Navarre, sprawled with blood and surrounded by curtains and blood-covered surfaces, slumped on a chair at the dining room table.

Navarre had a large cut on the right side of the neck and a kitchen knife in his right hand. However, the police quickly ruled that the scene was suspicious and, later, committed suicide unconvincingly. They noted the deep wounds to Navarre's skull and the presence of a bowl filled with dried blood just below his head, located directly under his head. The drawers in his room and dining room had been opened and other chairs around the dining room table had been knocked down. The police called the investigators on the killings.

The investigators made an initial assessment, interviewing the co-worker and noting a pizza in the kitchen, pieces covered with aluminum foil and others strewing the floor. The co-worker told the investigators that Navarra was a private person who was left alone, living alone with her cats, and did not seem to have a romantic partner. She mentioned that Navarre's parents, who lived somewhere nearby, would probably be the next of kin.

The following day, the investigators met Navarre's parents, his mother, 92-year-old Adele Aiello, and his father-in-law Tony Aiello. Tony quickly explained the pizza in the Navarre kitchen, claiming that he had made it himself and brought it to Navarre on Saturday, September 8, the last day he saw it alive.

Tony told the police that he had brought the pizza around 3 pm, after which he had declared that Navarra was home alone. He told the police that she had let him in and that he was excited by the delivery of the pizza. He stayed about 15 minutes and then left to go home. He added that he then saw Navarre go in front of his car in his car with an unidentified person in the passenger seat. He told the police that she had honked and beckoned to her when she passed by.

An appropriate piece of data

After obtaining the bloody details of the autopsy report, the investigators began to follow exactly what happened that Saturday, the last known day of Navarre's life. They collected surveillance images of Navarra's home and the Aiellos' home around their respective quarters. Remembering that Navarra also wore a Fitbit on his left wrist at the time of his death, the investigators also worked to obtain reliable information. They ended up getting a search warrant. Fitbit brand protection director Jeff Bonham has been on guard for Navarra and has been busy collecting data on his heartbeat and movement since his last days.

Surveillance footage near Mr. Aiello's house clashed with Tony Aiello, claiming that his daughter-in-law had passed with an unidentified passenger. But a security camera facing the entrance to Navarre from a neighbor's home actually captured Tony's car parked at home that afternoon. The records activated by the movement saw Tony's car at Navarre's house on Saturday, September 8th at 3:12 pm, 3:14 pm, 3:19 pm, 3:21 pm and 3:33 pm. A clip at 3:35 showed that the car was gone.

Meanwhile, Fitbit Bonham sent the health data back to the investigators. He reported that the Navarra device had been connected via Bluetooth to a paired device located nearby when the police discovered it, and that the Fitbit was transmitting data every 15 minutes. The investigators noted that the Navarra desktop was only five to ten feet from where they had found his body in the dining room. His last recorded movement was on Thursday, September 13, about the time the coroner removed his body from his home.

Before that, his last move was on Saturday, September 8th, the day Tony had dropped the pizza. It was also the last day the device recorded its heart rate. The Fitbit recorded a "significant" heart rate spike at 3:20 pm, then quickly declined. At 3:28 pm, while Tony's car was still parked in his driveway, his heart stopped beating, depending on the device.

The investigators found a bloody garment belonging to Tony. They also found traces of blood in several sinks.

Faced with all the evidence, Tony Aiello was sticking to his original story, claiming that Navarre was still alive when he left her and that someone else could have been in the house. He explained the blood saying that he had a tendency to cut himself a lot. But after the interview, the investigators heard Tony talking by himself in the interview room. According to the investigators, it has been repeated several times: "I have finished."

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