破解兇案! Fitbit智能手環(huán)心率數(shù)據(jù)立功

Fitbit data has been used by US police investigating whether a 90-year-old murdered his stepdaughter.

日前，美國警方通過利用Fitbit手環(huán)的數(shù)據(jù)，調(diào)查了一名90歲的男子是否殺害了自己的繼女。

The victim, Karen Navarra, 67, was found with a kitchen knife in her hand, suggesting she killed herself.

受害者凱倫·納瓦拉，今年67歲，被發(fā)現(xiàn)的時候手中握著一把廚房用刀，營造出自殺的情景。

Anthony Aiello, who denies murder, told police he had visited her for 15 minutes to drop off pizza.

安東尼·艾洛否認(rèn)了謀殺，他告訴警察自己是來看望納瓦拉，在她家呆了15分鐘，還給她帶來了披薩。

But police say a fitness tracker she was wearing showed a significant spike in heart rate followed by a rapid slowdown at the time he was there.

但警方發(fā)現(xiàn)，納瓦拉佩戴的健身追蹤器顯示，在艾洛在現(xiàn)場的那段時間，納瓦拉的心率明顯提高，然后又迅速下降。

According to a police statement obtained by USA Today, Ms Navarra's Fitbit Alta device showed a raised heart rate at about 15:20 local time, when video evidence suggested Mr Aiello's car was at her house.

根據(jù)《今日美國》獲得的一份警方聲明顯示，當(dāng)?shù)貢r間15:20分，納瓦拉的Fitbit智能手環(huán)顯示她心跳加速，而視頻證據(jù)顯示，艾洛的車當(dāng)時就停在納瓦拉家。

It then recorded her heart rate slowing rapidly and stopping at 15:28, five minutes before he left.

在艾洛離開的五分鐘前，F(xiàn)itbit智能手環(huán)的記錄顯示她的心率迅速下降，并在15：28分完全停止。