John O’Keefe died from falling backwards and hitting his head on frozen ground, according to a Yale-educated brain surgeon who testified Wednesday in the murder trial of Karen Read.

Testimony in the Karen Read trial has painted a picture of everyday drinking and casual drunk driving. State data shows a more sober reality.

With potentially only one witness left to testify for the prosecution, Massachusetts murder defendant Karen Read said she is "anxious" to begin presenting her defense.

Karen Read's lawyers say she was framed for the death of her boyfriend, John O'Keefe, in a conspiracy devised by Massachusetts cops.

Jackson put up a slide on the monitor indicating that bumper piece E, which Hanley said was consistent with another glass piece at the scene, was recovered by State Police investigator Michael Proctor, who was fired after he was forced during the first trial to read crude and misogynistic texts he sent about Read to friends and coworkers.

Miami neurosurgeon Dr. Aizik L. Wolf told jurors a fall backward was “the only way” O’Keefe could have sustained his fatal head injuries.

The Massachusetts judge presiding over Karen Read's second trial in the death of Boston Police Officer John O'Keefe has barred references to the botched Sandra Birchmore investigation.

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

As the Karen Read trial continued on Monday, a forensic analyst for the prosecution testified about the movements of Read's SUV.

Video played for jurors in the Karen Read trial shows Brian Higgins at the Canton police station on the night John O'Keefe died, Massachusetts State Police Sgt. Yuri Bukhenik testified.