Introduction

In 1982 a group of seven individuals in Chicago died after taking an over-the-counter Tylenol Extra Strength capsule. The suspect who tampered with the pills opened the capsules and added a deadly cyanide compound and then put them back on the shelf. This case changed the design of Tylenol capsules after the tampering occurred. The older capsule was designed for customers to be able to open it and extract the powder in order to take the medicine with a liquid. The tampered pills killed seven people including a 12-year old girl, who was the first to die. The case still remains unsolved.