- Nascar champion Kyle Busch died of pneumonia and sepsis, family says BBC
- Family says Kyle Busch died from severe pneumonia, sepsis ESPN
- NASCAR driver Busch died of sepsis after pneumonia: family Yahoo Sports
- Kyle Busch family releases statement on cause of death Jayski
- Kyle Busch, two-time NASCAR Cup Series champion, dies at age 41 NASCAR.com
Nascar champion Kyle Busch died of pneumonia and sepsis, family says – BBC
