Dan Quinn never fought inside the octagon. That being said, the mixed martial arts veteran formed some bad blood with UFC President Dana White all the same. Former UFC light heavyweight champion Jon Jones was forced to pull out of the highly anticipated fight card for UFC 200 after the fighter failed a drug test. Consequently, Dana White was left scrambling to save the event. Meanwhile, TMZ Sports would go on to report that MMA fighter Dan Quinn allegedly threatened to bring a group of individuals with firearms to UFC 220. Quinn then allegedly threatened to shoot and kill Dana White at the event. Quinn has a history of being in and out of prison for unrelated weapons charges. Of course, in the end, Quinn did not make an appearance at the event and Dana White's life was not put in danger. For more MMA news click here.