Was Jack The Ripper an American? This exclusive HISTORY commission follows Jeff Mudgett, the great-great-grandson of America’s first serial killer, H.H. Holmes, as he investigates the possibility that his relative could be the infamous killer. After twenty years searching for the truth about his notorious ancestor, Mudgett partners with ex-CIA analyst Amaryllis Fox to launch a new investigation. By exhuming Holmes’ body, using modern technology and the help of experts from the UK and the US, the pair aim to solve one of the greatest cold cases of all time. Herman Mudgett, alias H.H. Holmes, is believed to be responsible for killing as many as 200 people in the late 19th century. A con-man, opportunist and genius, the crowning achievement of his dark deeds was the construction of a building later dubbed the Murder Castle: a hotel on Chicago’s south side that he engineered to be a factory of death, complete with gas chamber, dissection room, trap doors and a basement furnace to destroy any trace of his sinister work. Around the time of Holmes’ killing sprees, a killer was terrorising the streets of London, murdering at least five victims in Whitechapel. Could they be the same person? Where was Holmes during the Jack murders? Who was H.H. Holmes and how did he evade capture for so long?