Four people lie dead on the sterile floors of Newton Memorial Hospital. The shooter had been one of Dr. Jack Norris patients. The chief of fellows is perplexed at how the sixty-three-year-old heart patient would have a gun, and why he would shoot Jacks best friend, Dr. John Connor, then turn the gun upon himself. Teaming up with local detectives and one FBI agent, a complicated network of scientists and professionals emerge as culprits in a web biological terrorism and greed. First, Do No Harm chronicles Jack Norris attempt to diagnose a difficult heart disorder while simultaneously diagnosing Connors murder.