Powell, a doctor of urologic oncology at Karmanos Cancer Institute, specializes in prostate cancer. Local 4 is profiling Dr. Powell for Black History Month as a change maker in our community. MORE: Black History Month StoriesPowell grew up in Gary, Indiana and always knew he wanted to study medicine. So that was a devastating blow and that was my first actual, my first case of exposure to racism,” Powell said. Powell went on to medical school and became a successful surgeon, and thought leader in prostate cancer research.