After a three-month trial and the testimony of 65 witnesses, the defense and prosecution teams give their closing statements.
The defense begins with expert witnesses who give detailed and reasoned accounts of why Kathleen's death was an accident.
A reluctant witness comes forward and information about a previous death is used in the trial.
The prosecution's case rests on the quantity of blood found beside the body, the wounds to Kathleen's head, and the iron poker as the murder weapon.
Elizabeth Ratliff's body is exhumed for autopsy and a report in the press threatens Peterson's defense.
The prosecution discovers new evidence related to the 1985 death of a friend of Michael Peterson.
A few months after Kathleen Peterson's death, the police discover a hidden side to her husband's life.
Novelist Michael Peterson dials the emergency services in Durham, North Carolina, to tell them that he had just found his wife, Kathleen, unconscious at the bottom of the stairs.