Published Date: 2023-11-07 15:45:02, Category: News (661676)Time: 01:38 min, View Count= 51 ( + More Social Media views ) , Rating= Title: Florida teen dies of cardiac arrest while running 5KKeywords: Florida teen dies cardiac arrest running 5K Description: Family and friends of -year-old Knox MacEwen are in mourning after the teen died suddenly of cardiac arrest while running a 5K at a high WTVJs Ari Odzer Subscribe to NBC News: