Quincy, M.E. - Season 7 Episode 12 Smoke Screen
Overview: A big fire strikes at a hotel. The Coroner's Office is called in to deal with the fatalities. Most of the victims died from smoke inhalation rather than from the actual fire. Investigations prove it was arson and a suspect is quickly found. Quincy doesn't believe they have caught the right man though and helps out an insurance investigator, Jake Carter, look into it further.