Forensic Files - Season 9 Episode 6 Burning Desire No Witnesses. No Leads. No Problem.
Overview: Investigators sifted through the ashes of a fire, which had killed a 40-year-old woman, the estranged wife of a police officer. At first glance, the fire appeared to have been started by an unattended cigarette, but when forensic scientists looked closely, they discovered the cause was far more complicated. [also marked as S9:E12]