If you said you had a tougher life than Mark "Fightshark" Miller or overcame more with any comparable strength and determination, let's just say I'd be pretty skeptical. Once upon a time, Mark was considered to be the future of American kickboxers. He was a rising star. Then things went bad and then from bad to worse. He was diagnosed with a congenital heart defect and was told he needed open heart surgery to replace his aortic valve. Soon after his surgery, he lost his father, mother and brother one after another. But Mark was determined to compete again despite the open heart surgery, an eight year lay-off, the horrific personal tragedies and the fact that by combat sports standards, Mark was not a young man.