Operation Rescue (Kansas) has publicized a number of allegedly "botched" abortions at Tiller's Women's Health Care Services, including the death of Christin A. Gilbert following a third-trimester abortion. Operation Rescue staff have also investigated and made allegations regarding other facilities around the country. Dr. Tiller was cleared of any charges of medical neglect in the death of Christin Gilbert. In September 2006, Newman and "personhood" pro-life activist Keith Mason showed up at an open-air gubernatorial debate dressed as cockroaches, protesting alleged unsanitary conditions at Tiller's clinic. Democratic State Rep. Vaughn Flora (Topeka) recognized Newman, tore his mask off, and was arrested for battery.
Kelvin Tiller Vitkay at Bellator 88 on February 7, 2013. However, when Tiller failed to make weight for the third consecutive time, the bout was cancelled and Tiller was subsequently released from his Bellator contract. After parting ways with Bellator, Tiller faced Chris Henning on June 29, 2013 at Epic Fight Night 1: Stinson vs. Kimmons. Tiller won via submission in round one. In November 2013, Tiller signed a multi-fight deal with World Series of Fighting. Tiller was scheduled to face Ronny Markes at on August 9, 2014, but when Krasimir Mladenov pulled out of his fight with Elvis Mutapcic due to