Dr. Michael Fishbein

How will medical professionals determine the true cause of Whitney Houston's death? Pathologist Dr. Michael Fishbein explains what happens during an autopsy, and how toxicology will also play a role in the examination.

Certified pathologist Dr. Michael Fishbein gives 387-pound Nikki the ultimate wake-up call – a simulated autopsy on an overweight cadaver -- to show her the detrimental effects of obesity on the organs.