The jury in the Karen Read trial heard drastically different closing arguments Friday before deliberations were set to begin this afternoon at Norfolk County Superior Court in Dedham, Massachusetts.You can watch live coverage of jury instructions when they begin on CBS News Boston in the video above.

It took eight weeks and dozens of witnesses, but on Friday, Karen Read's retrial shifted to its most critical phase: jury deliberations.

Closing arguments took place Friday in the second murder trial of Karen Read, who is charged with killing her Boston police officer boyfriend in a case that has generated more than three years of heated debate.

Alan Jackson urged supporters not to yell or interrupt proceedings after delivering closing arguments in Karen Read's murder retrial.

Karen Read's defense lawyer urged jurors to find her not guilty in the murder trial of Boston Police Officer John O'Keefe, arguing there was no collision with her SUV

Jurors in the high-profile Karen Read trial could begin deliberations as early as Friday as defense attorney Alan Jackson called his final witness on Tuesday.

Tuesday marks Day 30 of witness testimony in Read’s second trial. Attorneys are expected to argue motions, including what the defense’s next ARCCA witness will be allowed to testify before Dr. Elizabeth Laposata returns to the stand.