A 42-year-old woman dies at a friend's house. The woman was depressed and abusing prescription drugs. Her supply of pills was depleted when her body was found, so it seems to be a suicide attempt. Dr. G must determine whether the woman's death was an accident or a suicide. Paramedics respond to a man's 911 call to find his 55-year-old wife unconscious in a hotel room. The woman inexplicably dies on the way to the hospital. The woman has no medical history, but Dr.