Tragic clip shows NASCAR driver Kyle Busch less than one week before he tragically passed away on May 21.Busch was thought to have had a sinus cold while racing at Watkins Glen on May 10. Despite this, he won the Trucks Series race at Dover on May 15, then finished 17th in the All-Star race on Sunday. Nobody knew how serious it was becoming.On Wednesday May 20, an unidentified male at the scene called 911 saying Busch was suffering shortness of breath, felt very hot, thought he was going to pass