Ms. Read’s retrial on charges that she killed her boyfriend, a Boston police officer, has so far largely resembled her first, which ended in a mistrial.

The prosecution's key witness Jen McCabe admitted she lied to the FBI while on the stand in the controversial retrial of the 45-year-old former adjunct professor at Bentley College

Among key arguments in Karen Read’s defense is that the injuries on John O’Keefe’s arm were marks from an apparent animal attack.