Lab technicians Nlada Marzette and Lynn Pilaggi inspect the contents of Extra-Strength Tylenol capsules for cyanide contamination at the Illinois Department of Health on Oct. 2, 1982. The seven murders in 1982 represent one of the nation's biggest unsolved criminal cases in decades. Tylenol packages had been tampered with in Chicago-area stores, spreading fear across the country and leading to a multimillion-dollar recall.
Ovie Carter, Chicago Tribune
Copyright © 2016, Los Angeles Times