 Thanks for being with us. Like so many victims, the first sign that Ken Jeffries was vulnerable to heart disease was a heart attack suffered when the 57-year-old was at the airport waiting for a flight collapsing to the floor of the Charlotte Douglas International Airport. He has his lucky stars to thank for his flight being bound for Knoxville, the same place Claire Serby was going. She's a registered nurse from a heart and vascular hospital center in Charlotte.