Critical evidence that was logged a month after police collected it. Defense lawyers at the trial of Karen Read – a Massachusetts woman accused of hitting her cop boyfriend with her SUV and leaving him for dead – are aggressively going after evidence being used against the 45-year-old woman.

Prosecutors’ crash reconstruction expert testified about the sudden acceleration Read’s SUV made and what injuries are consistent with a car crash.

A crash reconstruction expert has provided jurors his analysis of Karen Read’s vehicle the night her boyfriend was killed in her second murder trial.

Prosecutors in Karen Read's trial use crash expert data to support claims she hit boyfriend John O’Keefe with her SUV as evidence mounts in Massachusetts court.

In the trial of Karen Read, accused of killing John O’Keefe, defense scrutinizes crash expert's costly experiments and presentation modifications for inconsistencies.

A U.S. District Court judge ruled that the buffer zone outside of court where the Karen Read retrial is occurring is allowed to stand but the way it’s enforced by police has to change.

The prosecution appears to be on the verge of resting its case in the Karen Read retrial, which resumes Tuesday after Memorial Day.

So he tried to dress identically to John, but didn’t do anything else to mimic what the Commonwealth is accusing me of," Read told reporters.