Tylenol Murders 40 years later: unraveling the dark mystery

One of the Chicago area’s most infamous unsolved crimes began unraveling 40 years ago this week in the suburbs: the Tylenol murders. Someone tainted the popular painkiller with cyanide, creating panic throughout the Chicago area. CBS 2 Investigator Dorothy Tucker has been looking into how the infamous unsolved murder began, and how Chicago reporters covered it.
Source: ChicagoCBS