Dr. David R. King runs to share in the personal victories of his fellow marathoners and had just finished running the 2013 Boston Marathon when the bombs went off. Little did he know that his experience as an Army doctor in Iraq and Afghanistan would be put to the test in his own backyard. Upon hearing of the blasts, he immediately went to Massachusetts General Hospital where he began treating and operating on patients. Dr. King plans to run the 2014 Boston Marathon.