Complex sentence: He is the father and uncle respectively, of racers Scott Kalitta and Doug Kalitta, Scott who was killed on June 21,2008 in a terrible qualifying accident at the Lucas Oil Supernationals in Englishtown, New Jersey.
Split into simpler sentences: He is the father and uncle respectively, of racers Scott Kalitta and Doug Kalitta. Scott was killed on June 21,2008 in a qualifying accident at the Lucas Oil Supernationals in Englishtown, New Jersey.