Doctors who came into contact with William Hamman, the pilot who passed himself off as a cardiologist, had no idea he wasn't who he said he was. They thought he was an accomplished cardiologist who also flew.
"He was quite good at what he did (which was never patient care)," Dr. Cindy Grines, an interventional cardiologist at William Beaumont Hospital in Royal Oak, Mich., wrote in an e-mail. She worked with him at the hospital and was impressed by knowledge.
"He focused on his experience as...Full Story