Cassie Morris, the assistant director of nursing at Mayfield Health and Rehab, the top manager on site at the time, presciently led a practice drill just hours before a major twister hit. That and other follow-up care, performed despite personal tragedy that struck her family that fateful night, helped save countless residents’ lives. It was a hero’s tale, as 70 others lost their lives that day in a series of tornadoes that wreaked havoc over a 165-mile stretch in America’s heartland.