There are some self-inflicted wounds by investigators in the case," says a former federal prosecutor who watched opening statements on Tuesday for Karen Read's retrial.

The prosecution and defense offered vastly different facts and theories as Karen Read's second murder trial got underway Tuesday.

Karen Read pleaded not guilty to murder charges in the death of Boston police officer John O’Keefe and is facing a retrial after a jury was unable to reach a verdict last year.

Karen Read’s case has sparked national interest, fueled by the strange circumstances surrounding the charges and a Max documentary, “A Body in the Snow: The Trial of Karen Read.”

The second murder trial of Karen Read, who is accused of causing the death of her Boston police officer boyfriend, entered Day 2 as witness testimony resumed Wednesday.