Defense expert challenges prosecution theory in Karen Read trial, stating John O'Keefe's head trauma pattern doesn't match a fall on the lawn where his body was found.

An ARCCA crash reconstruction expert was back on the stand Wednesday in the Karen Read murder retrial.Dr. Andrew Rentschler testified about<a class="excerpt-read-more" href=" More

Read, 45, is charged with second-degree murder in the death of O’Keefe, who was found outside the home of a fellow Boston police officer on Jan. 29, 2022. Norfolk County prosecutors say Read struck O’Keefe with her SUV while driving intoxicated. Read’s attorneys say her car never struck O’Keefe and that others are to blame for his death.

Karen Read's defense presents expert testimony that Officer O'Keefe's fatal injuries resulted from falling backward, with facial wounds caused by a separate impact.

After Loughran’s testimony, the defense called Karina Kolokithas, a friend of both O’Keefe and Read who saw them at the Waterfall Bar and Grille the night before his death. “One important piece of evidence from Ms. Kolokithas was that she did not perceive Karen Read to be so intoxicated,” Edwards said.