David S. Egilman ’74, ’78 MD, who was not only a physician but also an expert witness in more than 600 trials involving malfeasance by pharmaceutical companies, died on April 2 of cardiac arrest at his home in Foxborough, Mass. After graduating from Brown, earning a master’s degree in public health from Harvard, and training at the National Institutes of Health, he moved to Cincinnati and worked in a clinic as part of the U.S. Public Health Service. He saw patients who were suffering from working in unsafe environments, mostly industrial or mining workers, and was determined to right the wrongs against medical injustice. In 1985, he moved to Massachusetts, opened a private practice, and began teaching at Brown. In addition, he spent time consulting and testifying in class-action lawsuit cases. He set up a company, Never Again Consulting (referencing his father’s experience during the Holocaust) to handle his list of legal clients. He assisted legal teams with strategy and coached them on how to present complicated medical data to juries. During a 2018 trial he said, “As a doctor, I can treat one cancer patient at a time, but by being here, I have the potential to save millions.” He was not always viewed favorably—especially by defense lawyers and pharmaceutical companies—because his research, which included emails and memos, showed that companies pushed medicines out on the market despite knowledge of their potential risks. He is most well known for providing critical testimony in a lawsuit against Johnson & Johnson’s baby powder and talc products, claiming they had failed to reveal known health risks. Although several settlements have been proposed, the litigation is continuing. “A physician’s oath,” he told Science magazine in 2019, “never says to keep your mouth shut.”  He was also the founder of Global Health through Education, Training, and Service (GHETS), a nonprofit dedicated to improving health in underserved communities. He is survived by his wife, Helene, and two sons.