A second expert on smartphone forensics testified Wednesday in the Karen Read trial that Jennifer McCabe’s Google search about hypothermia happened after John O’Keefe’s remains were found, not before, as the defense has argued.

Jessica Hyde testified that she could say with scientific certainty that McCabe used her iPhone to search the phrase “hos (sic) long to die in cold” at 6:24 a.m.

The defense claim that the search happened at 2:27 a.m. – hours before investigators say Read, McCabe and Kerry Roberts found O’Keefe dead in the snow at 34 Fairview Road – is incorrect, she testified. The earlier timestamp has no connection to the search but is actually assigned to the time McCabe opened the browser tab on her phone.

That testimony supported earlier testimony from Ian Whiffin, a digital forensic expert from the firm Cellebrite, which makes some of the software and hardware that investigators use to look for information on phones and other devices.

Karen Read, left, listens to lawyers Robert Alessi and Hank Brennan during her murder trial on May 7, 2025. (Greg Derr/Patriot Ledger via AP/Pool)

But Keefe’s testimony helped prosecutors establish a firm timeline of when and where police found broken taillight fragments: in the snow-covered street in front of 34 Fairview Road, where O’Keefe and Read had been seen the night before.

Testimony is expected to resume shortly after 9 a.m. Thursday.