Manny Pacquiao is one of the nice guys in the game of boxing.
In addition to his charitable endeavors that have focused on health care, education and sports in his native Philippines, he has focused on political activity in his homeland that will give him a greater opportunity to help disadvantaged individuals.
Of course, Pacquiao has been on one of the greatest fighters of his era. He has a 54-4-2 record and is recognized as one of the greatest pound-for-pound boxers with his slashing style. He has registered 38 knockouts in his 54 victories, and his two-fisted attacks have made him one of the most dangerous fighters of his era.
Here's a look at six other dangerous "assassins" who were also nice guys outside of the ring.