Ken Shamrock was a pioneer for MMA. He spread popularity for the sport in Japan, U.S., and other areas. He was originally a street brawler from the California area, but eventually become a very successful person. He ran away from his home, then got arrested, then went to many foster homes before going in to Bob Shamrock's home, who eventually adopted him and Frank Shamrock. He spent time at pool holes, being a stripper, etc. He wanted to go in to wrestling or pro football. He tried many things, even went in to the Navy Seals. Somehow one day he heard about some event called the UFC... lol, that's his story anyhow, he was one of the greatest UFC fighters, and is very underrated now. He is perhaps even better than he was ever before even though he is 42 since he has evolved his game and tried and learned many new styles.