A New Lead in the Unsolved 1982 Poisoned Tylenol Deaths

Idaho investigators say Dr. Mathew Francis Betkouski is a possible suspect in the 1982 Chicago-area deaths of seven people who took Tylenol, a pain pill, secretly mixed with cyanide, a fast-acting poison. Betkouski was found dead from cyanide in a Boise church that December. Chicago police are talking with Idaho. No charges were ever filed; the case is still open.