CNN highlights about a dozen witnesses called over the last eight weeks, whose testimony illuminated key pieces of the theories presented by prosecutors and Read’s defense.

For the second time in a week, Judge Beverly Cannone denied Karen Read's attorneys' request for a mistrial after they accused the prosecution of misconduct.

For weeks, all appearances were that prosecutors would call witnesses as part of a brief rebuttal case in the Karen Read retrial, giving them the opportunity to get the last word after damaging testimony from expert witnesses for the defense.

Karen Read’s attorneys are making a final push, preparing to call their final witnesses to the stand in her murder retrial.Read<a class="excerpt-read-more" href=" More

Daniel Wolfe with ARCCA testified in the Karen Read trial about using a test dummy to investigate the alleged collision between John O'Keefe and Read's SUV.

Jurors heard from a trio of witnesses on Monday, including an accident reconstruction expert and a medical examiner hired by the defense. The medical examiner resumes her testimony under direct examination Tuesday morning.