Health data from an Apple Watch has been used as evidence in the Lindsay Clancy murder trial alongside iPhone Messages history, detailing some of her last actions before the triple homicide of her children.

Former labor and delivery nurse Lindsay Clancy is under trial for the alleged murder of three children in Massachusetts in 2023, before attempting suicide. In the last day of the prosecution laying out its case, it used data from the Apple Watch, phone calls, and internet search histories as evidence.

Digital forensics expert Ian Whiffin of Cellebrite, a company known for extracting data from iPhones, took to the stand for the prosecution. The testimony discussed various factors, including her search history, reports Eonline.

Searches were found about drugs and medication, such as "how quickly does wellbutrin work for depression" and "ketamine for suicidal ideation" ahead of the deaths and her suicide attempt. On the day itself, searches were made for "Kids miralax" and "CVS pharmacy."

When it comes to calls, Whiffin said Clancy's iPhone was last unlocked at 5:13 P.M. on January 24 of 2023. The phone received an unanswered phone call from now-ex-husband Patrick at 5:33 P.M.

A few minutes later, a 14-second outbound call was made back to Patrick, which may have been performed while the iPhone was locked. A second unanswered call was received from Patrick at 6:09 P.M.

Apple Watch data

Whiffin also discussed the Apple Watch, and data recorded in the Apple Health app on the iPhone. It is claimed the data showed her last recorded heart rate was 57 beats per minute, thought to be low for Clancy.

She also climbed two flights of stairs at 5:03 P.M. and 5:33 P.M.

Defense attorney Kevin Reddington took aim at the prosecution's data claims, due to the times the devices stopped recording data. For the Apple Watch, it had apparently stopped recording at 5:23 P.M., while the iPhone did the same at 5:38 P.M.

It is plausible that the data is accurate when it comes to climbing stairs. Apple has long included the capability to count steps and changes in elevation in the iPhone, even without an Apple Watch.

Reddington said as much during the cross-examination, as detailed by NBC10 Boston. While some data was "off a bit," he testified that the heart rate was recorded by the Apple Watch, but steps were done so by both the Apple Watch and iPhone.

Continued digital trail

This is not the first instance in the trial that data from iPhones and Apple Watches have been used.

In the third week of the trial, the final texts from Lindsay to Patrick were read in court. Hours before the evening's events, Lindsay asked if Patrick wanted take-out food.

Patrick also asked Lindsay about 8-month-old Callan's nap time. She responded, "It was just a short nap."

The prosecution has framed the take-out talk to be a way for Lindsay to send Patrick out on an errand, to leave her alone with the children.

Notes from the iPhone created in the preceding months were also brought up, including one where she revealed she was "a touch anxious" and asked a psychiatrist for Zoloft. She continued, admitting "That's when everything started going downhill."

The note was last modified on January 23, the day before the killing.

The trial continues.