Hemphill told Channel 2's Rikki Klaus that Stone's career goals were always clear.



"Everybody in school would tell you that she was going to be a pilot," Hemphill said.



Not only did she become a pilot, but at 24, Stone was a flight instructor at Falcon Aviation Academy.



"She was my best friend growing up in elementary and middle school," Hemphill told Klaus. "And she probably taught me the true definition of a friend."