knockout after tests. Kirkham's MMA match occurred 63 days after his final amateur match. The event occurred in June 2010, when South Carolina MMA rules were still in its infancy after Act 53 became law without Governor Mark Sanford's signature on June 3, 2009. There was only a 30-day rule for knockouts in effect. Following Kirkham's death, the South Carolina Athletic Commission revised combat sport rules to change the suspension period to 60 days for knockouts and 30 days for technical knockouts. That took effect in 2012. Tyrone Mims 30-year-old Tyrone Mims was competing in an amateur mixed martial arts show on August 11, 2012, at Conflict MMA Fight Night at the Point IV in Mount Pleasant, South Carolina. Tyrone became weak and tired in the second round and the referee stopped the bout because he was unable to continue. The referee and cage-side physician both checked on him and he responded to them that he was fine, just tired. Shortly after being helped back to the locker room by teammates, Tyrone lost consciousness. EMS attempted to revive him at the scene and transported him to the Medical University of South Carolina (MUSC) hospital where he was pronounced dead at 9:27 p.m. The Charleston County Coroner performed a "gross autopsy", which looks at visible injuries, and failed to reach a cause of death. The final autopsy results were also inconclusive, no evidence of a concussion or brain trauma were detected, and the toxicology report did not reveal the presence of drugs or alcohol. Coroner Rae Wooten speculated that Mims "might have had an irregular heart because of some electrical dysfunction" stating: "That obviously isn't seen after death. Once that's completed, there's no evidence of that." And concluding: "There's just nothing here that explains his death." Booto Guylain 29-year-old Booto Guylain, a Congolese fighter, experienced a head injury during the third round of his MMA bout against Keron Davies at EFC AFRICA 27 held in Johannesburg, South Africa, on February 27, 2014. He was stabilized on-site and taken to the hospital. He died a week later on March 5, 2014, as a result of complications related to the swelling of the brain. Donshay White 37-year-old Donshay White of Radcliff, Kentucky lost a sanctioned amateur heavyweight bout against Ricky Muse in Louisville, Kentucky by TKO in the second round at an event titled "Hardrock MMA 90" on July 16, 2017. It was