George Tiller the time of his death, Dr. Tiller was board certified with the American Board of Family Practice, an Associate of the American Society of Addiction Medicine, and a clinical instructor in the Department of Family Medicine for Wesley Medical Center, where he had previously served as president of the medical staff. Tiller's practice performed late-term abortions, which made Tiller a focal point for anti-abortion protest and violence. Tiller treated patients who discovered late in pregnancy that their fetuses had severe or fatal birth defects. He also aborted healthy late-term fetuses in cases where two doctors certified that carrying the fetus
George Tiller Society’s impaired physicians committee. Tiller was discussed in 28 episodes of the Fox News talk show "The O'Reilly Factor" in the years leading up to his death, focusing national attention on his practice. Although he later denied it, show host Bill O'Reilly sometimes described him as "Tiller the Baby Killer", a nickname that Congressman Robert Dornan had used on the floor of the US House of Representatives. O'Reilly said he would not want to be Tiller, Kathleen Sebelius, and other pro-choice Kansas politicians "if there is a judgment day". On November 3, 2006, O'Reilly featured an exclusive segment on "The