In 1978, a toddler named Frank Nelson made his way to the top of a 12-foot slide in Hamlin Park in Chicago, with his mother, Debra, a few steps behind him. The structure, installed three years earlier, was known as a “tornado slide” because it twisted on the way down, but the boy never made it that far. He fell through the gap between the handrail and the steps and landed on his head on the asphalt. A year later, his parents sued the Chicago Park District and the two companies that had manufactured and installed the slide.
In January 1985, the Chicago Park District settled the suit with the Nelsons. Frank Nelson was guaranteed a minimum of $9.5 million.