*snip*
The Tylenol killer has never been caught. Many believe he never will be caught. A somewhat bumbling suspect who attempted to cash in on the unprecedented publicity was arrested and charged with extortion, but not with the murders.
The police concluded he was merely an opportunistic extortionist, and could not be the murderer. Although some believed he should have been tried for the murders, too many details and circumstances suggested he could not be the poisoner. James Lewis was released in 1995, after serving 13 years of a 20 year sentence.
*snip*
Most people believe the Tylenol Killer will never be caught, and that this was an unsolvable crime. But consider the fact that the Unabomber now sits in jail, all because one person in the world recognized him in the published information.
The Tylenol Killer is probably still alive, and as long as he lives there is still hope of solving this crime, because someone, somewhere, knows him personally.
*/end snip*
Snopes has this to say about it. . .