In the murder trial of Karen Read, expert testimony highlights John O'Keefe's fatal head injuries and the role of hypothermia in his death.

A brain surgeon testified at Karen Read’s second murder trial Wednesday that the victim’s skull was most likely fractured when he fell backward and hit his head.

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

After a morning delay caused by an 'issue' with the jury, Day 20 of testimony resumed in Karen Read's second murder trial.

DEDHAM, Mass. — Wednesday marks Day 20 of witness testimony in Karen Read’s murder retrial, and a doctor and a state police chemist are expected to testify in Dedham’s Norfolk Superior Court.

Judge Beverly Cannone told jurors at the start of court on May 21 that an issue had arisen that made it necessary for her to meet with each of them.

A timeline of events presented by digital forensic expert Shanon Burgess suggests Karen Read could have struck John O'Keefe with her Lexus SUV.

Shanon Burgess returned to the witness stand after delivering tense testimony Monday, when his credentials were questioned by ...

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Expert Shanon Burgess faces scrutiny over timeline errors and credentials in Karen Read's trial as the defense challenges the ...

A digital forensics expert who the defense grilled Monday over his academic credentials is back on the stand to start proceedings Tuesday in the Karen Read trial.