Karen Read pleaded not guilty to murder charges in the death of Boston police officer John O’Keefe and is facing a retrial ...

Read is accused of striking John O’Keefe, her Boston police officer boyfriend, with her SUV and leaving him to die alone in a ...

Cellebrite expert Ian Whiffin walked jurors through one of the most contentious pieces of evidence in Karen Read’s case ...

What to Know Karen Read is charged with second-degree murder, manslaughter while operating a vehicle under the influence and leaving the scene She is accused of striking John O’Keefe, her Boston ...

What to Know Karen Read is charged with second-degree murder, manslaughter while operating a vehicle under the influence and ...

Special prosecutor Hank Brennan, right, questions Ian Whiffin, a digital intelligence expert with Celebrite, about the data ...

Digital forensics specialist Ian Whiffin testified Monday that location data on O’Keefe’s phone was consistent with the device being near a flagpole on the lawn of the home from 12:32 a.m ...

Under direct examination by special prosecutor Hank Brennan, Ian Whiffin, a digital intelligence expert with Celebrite, details a photograph showing the location (red dots) of John O'Keefe's ...

Whiffin’s presentation includes a slide showing all the “high frequency” location data from O’Keefe’s phone on the night of Jan. 29, 2022. The data is accurate within 10 meters ...

Cross-examination of a prosecution cell phone expert will resume Tuesday morning. With Whiffin still on the stand, Cannone called for a brief morning recess. Whiffin’s testimony should resume ...