Tylenol murders -- Mary Kellerman, first victim, was found at 7 am.
Three other deaths were in one family (total of seven).
http://www.trutv.com/library/crime/terrorists_spies/terrorists/tylenol_murders/index.html
No date for release of Tylenol, only year, so far found.
<< In 1953, McNeil Laboratories introduced Algoson, a preparation containing paracetamol together with sodium butabarbital, a sedative. >>
ef