Profiles the former Ultimate Fighting Championship light heavyweight champion, including information on his fighter stats, record in the UFC, his fight training, and career highlights.

John D. Hamilton earned a M.Sc. degree at McGill University and a Ph.D. in toxicology at the University of Cincinnati. Previously Dr. Hamilton was involved with product risk assessment as a group leader in environmental toxicology and ecological risk assessment at Rohm & Haas Company. He provided modeling, risk assessment and pollution prevention support to product development teams at Rohm & Haas. He is now a Research Associate involved in research and development for S.C. Johnson Wax...Roger Sutcliffe..Contributors:.Bob Boethling, US EPA.Vincent Nabholtz, US EPA.Krzysztof M. Jop, Science App