H.H. HOLMES AND JANE TOPPAN (MOST SHOCKING SERIAL KILLER DOCUMENTARY) This episode is set in the 1800s and talks of H. H. Holmes (Doctor .\r<br>\r<br>H.H. Holmes and Jane Toppan are two of the earliest serial killers in the US.\r<br>\r<br>\r<br>\r<br>\r<br>\r<br>Serial Killer Saturday – Jane Toppan Michael Newton - An Encyclopedia of Modern Serial Killers - Hunting .\r<br>\r<br>
