Joe Guse

Phil Hartman is best known for his iconic impersonations of Bill Clinton in countless "Saturday Night Live" skits, voicing Troy McClure on "The Simpsons" and starring in the sitcom "NewsRadio." Despite his professional success, Hartman's personal life was far from perfect.

Revealing the truth behind the controversial deaths of some of the most famous celebrities. Crucial medical evidence gained from the actual autopsies explains what killed the stars and reveals how they died, finally putting an end to the speculation.