Ian Whiffin

Ian Whiffin testified for the Commonwealth on Day 14 about his analysis of Lindsay Clancy's iPhone extraction. A Cellebrite customer engagement manager with digital-forensics experience, he explained health measurements, stair-climb records, searches, calls, and other device activity. The court admitted his report without objection as Exhibit 266.

Whiffin identified the last recorded heart rate as 57 beats per minute at 5:23:52 PM. After removing duplicate phone and watch records, he identified two phone-recorded climbs within approximately 5:33 to 5:38 PM. He clarified that the first timestamp marked recognition of a completed climb, not the beginning of the movement. He also distinguished user-entered search terms from webpage titles when reviewing medication, suicidal-ideation, and psychosis-related searches. That testimony identified search activity rather than offering a clinical diagnosis or opinion on criminal responsibility. He explained that a callback could occur while the phone remained locked and that the recovered Apple Note did not reveal its exact modification history.

On cross-examination, Kevin Reddington tested the reliability and interpretation of phone and watch activity records and reviewed searches and family messages. Whiffin confirmed that he had researched Apple Health accuracy and corrected counsel's description of an experiment to specify that it involved three phones. Exhibits 267 through 270 were admitted during cross-examination.

On redirect, Whiffin explained that watch data had synchronized to the phone and that an operating phone records movement regardless of who carries it. He needed the underlying data to identify the device responsible for January 25 activity. He also distinguished his focused internet-history reports from the larger Cellebrite report, whose creator and selected options he did not know. The court admitted the full extraction without objection. Whiffin did not believe either device showed further flight climbs between 5:38 PM and 6:09 PM, but on recross he could not explain the absence of recorded activity. He did not confirm Reddington's suggestion that the phone was dead or off and acknowledged that he had not reported on steps or distances.