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One of several mental health experts to give their take on why Jeffrey Dahmer killed, Dr. Park Dietz dismisses the conclusions made by the defense's mental health experts.

When a well-respected psychiatrist and his adult son are killed as they sleep, police are baffled by the apparent randomness until an arrest in an unrelated crime leads them to the least likely of suspects.

The night begins with a birthday celebration for Susan Sutton; it ends with a nightmare when a man breaks in and opens fire, killing Susan and blinding her husband; when police track down the shooter, they can't believe who he said put him up to it.

After leaving a work party late at night, Ramona Krotinea's body was discovered in the trunk of her own car the next day, and police need to reconstruct who and what happened in the intervening hours.

Rosemarie Essa appears to die in a car crash; when police learn this was no more than a low-speed fender bender, they begin to suspect foul play by someone who knew what they were doing.

Investigators looking into John O'Keefe's death collected four different cell phones. These included the victim's, Karen Read's, Jennifer McCabe's, and Kerry Roberts'. State Trooper Nicholas Guarino was on the stand, tasked to examine the information from those phones. Guarino told jurors that it took months to retrieve all the data from her cell phone. Why? Some of that info fell within attorney-client privilege.

The relationship drama between Karen Read and John O'Keefe spilled out in text messages. Jurors read through exhibits of the cell phone data, and it showed the couple had been fighting the day before and the day of victim's death. Next, a retired ER doctor and forensic pathologist was the subject of a voir dire hearing. Dr. Marie Russell specialized in hit-and-run incidents. She was a potential witness for the Defense's case.

Judge Beverly Cannone held a hearing on whether an expert witness for the defense could testify to the jury. Dr. Marie Russell, a retired forensic pathologist, said that she believed the wounds on John O'Keefe came from a large dog attack. The lead prosecutor in Karen Read's murder trial had some questions for the defense's medical expert. This was during a hearing which would determine whether the jury would hear her testimony.