"David Lawrence Sackett (surname)/Sackett", (born November 17, 1934) is a Canadian medical doctor and a pioneer in evidence-based medicine. He founded the first department of epidemiology/clinical epidemiology in Canada at McMaster University, and the Oxford Centre for Evidence-Based Medicine. He is well known for his textbooks Clinical Epidemiology and Evidence-Based Medicine.

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We believe that if the 911 caller hadn't called at that time, and the police hadn't arrived when they did, that the third child would have been dead also.

The suspect came after police with a knife, ... They fired one shot, striking Mr. Tran. Mr. Tran was at a later time pronounced dead.