““In 2015, a Massachusetts accountant named Stephen Pasceri lost his seventy-eight-year-old mother to cardiovascular disease. Mrs. Pasceri had a long history of health trouble, including emphysema, and died after an operation to repair a heart valve. Pasceri, however, was convinced that one of his mother’s doctors, Michael Davidson—the director of endovascular cardiac surgery at a top Boston hospital and a professor at Harvard Medical School—had ignored warnings about a particular drug given to Pasceri’s mother. In a literal case of the death of expertise, the accountant showed up at the hospital and shot the doctor to death. He then killed himself after leaving behind a flash drive with his “research” about the drug. Obviously,””
