Famous Unsolved Cases- A few of the famous unsolved cold cases are still open, despite using new technology to catch the criminals. Throughout history there have been a few that go unsolved. Some of them are more than 100 years old and we’ll never know the truth on what happened.In 1982, seven people died in the Chicago area after taking Extra Strength Tylenol capsules. It is still one of the famous cases of the 20th century. The capsules were tampered with and laced with potassium cyanide.
