Episode 414 - S4.E15

A man hits his head while sliding down a rock, leaving him unconscious in a mountain pool (August 26, 1991. Angel Falls in California); Masked gunmen rob supermarket (April 18, 1992. Roseville, California); Airline passenger chokes on meat (May 28, 1990); Two-year-old drowns in pool (June 30, 1992. Englewood, Colorado)