George Tiller planned to start a dermatology residency. However, on August 21, 1970, his parents, sister and brother-in-law were killed in an aircraft accident. In her will, his sister requested that Tiller take care of her one-year-old son. Tiller had intended to go back to Wichita, close up his father's family practice and then go back to become a dermatologist. However, he quickly felt pressure to take over his father's family practice. Tiller's father had performed abortions at his practice. After hearing about a woman who had died from an illegal abortion, Tiller stayed in Wichita to continue his father's practice. At
Kelvin Tiller injury on the same card, Tiller stepped in as a replacement. As a result, Markes ended up fighting promotional newcomer Cully Butterfield. Tiller was handed his first professional defeat by Mutapcic via three-round unanimous decision. Tiller went to Topeka High high school and Highland Park High in Topeka, Ks after high school he went to Allen County Community College for track. He was raised by a single mother Patricia Rains as they moves around between Kansas City and Topeka most of his childhood. He is the youngest of 4 children and has 3 older sisters Patricia (Nikki) Tiller, Tierra Tiller,