According to biomechanics expert Andrew Rentschler, the abrasions on John O’Keefe’s arm weren’t consistent with contacting the taillight on Read’s SUV. The post Livestream: Final defense witness back on the stand in Karen Read trial appeared first on Boston.

Read is accused of striking John O’Keefe with her SUV and leaving him to die alone in a blizzard outside of a house party in Canton.

After the defense wrapped up its questioning of Rentschler, Prosecutor Hank Brennan told the judge he did not plan to call any more witnesses, reversing an earlier request to recall a different crash expert. The lawyers agreed to begin their closing arguments at 9 a.m. Friday. They'll then hand the case to the jury.

Following the lunch break, special prosecutor Hank Brennan turned his attention to Laposata’s qualifications and tenure with the medical examiner’s office, from which she resigned in 2005. He homed in on the higher profile cases Laposata oversaw during her time there, including the lethal 2003 Station nightclub fire.