CHICAGO — As the 40th anniversary of the 1982 Tylenol murders approaches, investigators are working with prosecutors on a now-or-maybe-never effort to hold a longtime suspect responsible for the poisonings that killed seven people in the Chicago area, the Tribune has learned. This summer’s meetings mark the latest effort to pin the unsolved killings on James W. Lewis, a former Chicago resident who was convicted years ago of trying to extort $1 million from Johnson & Johnson amid a worldwide panic that arose after the victims took cyanide-laced capsules. Investigators traveled to the Boston are…
