It’s a Chicago area cold case that frightened the entire nation -- seven people died from taking Tylenol. This week, we mark the 25th anniversary of the Tylenol murders. Someone replaced the medicine in that popular pain reliever with poison. The incident sparked a massive investigation that brought together a city, state and suburban police departments and the FBI. The killer has never been found. One the morning of Sept. 29, 1982, an emergency call was made to the Arlington Heights Fire Department. There was nothing paramedics could do when they got to Adam Janus’ home. "The fellas came back...