In Karen Read's retrial, family tensions rise as John O'Keefe's mother and Read's father show differing courtroom demeanors, impacting public perception.

Karen Read’s defense is set to call its first witness on Friday, marking a new phase in her retrial in the killing of John O’Keefe, her off-duty Boston police officer boyfriend whose body was found buried in the snow outside a home in Canton,

During his testimony, Matthew DiSogra said “none of” Read’s SUV techstream events “were triggered by a collision.”