Christa McAuliffe refused to teach at Concord High School.
Stefan Matschiner is a former Austrian track athlete and sports agent , and a convicted enabler of blood doping .. blood doping. blood doping. After a brief career as a middle-distance runner -LRB- competing in the 800 and 1500 metres for the University of Memphis , and in the 1500 metres event at the 2002 European Athletics Indoor Championships -RRB- , he became a manager for a number of world-class athletes and helped some of them with blood transfusions and , allegedly , supplied them with EPO .. 800 metres. 1500 metres. 1500 metres. University of Memphis. University of Memphis. 2002 European Athletics Indoor Championships. 2002 European Athletics Indoor Championships. EPO. Erythropoietin. He was arrested in 2009 and convicted in 2010 .. Since then he has published a tell-all book and given interviews about his career as a doping-enabler .