"Breithaupt was among the first to organize bicycle races on dirt motorcycle courses in the early 1970s, becoming first a founder of BMX — or bicycle motocross — then a champion, then one of its first famous faces."
It is sad that a great of the sport seems to have not been missed by anyone and found dead on a vacant lot. He was largely responsible for BMX motorcross becoming a major events sport.
Like many highly successful and driven people he had been battling his demons including a long-standing drug addiction problem.