These gruesome crime scene photos from 1910s New York were never supposed to see the light of day.
Used by turn of the Century detectives to solve grisly murder cases, the images were meant to be thrown into the Hudson but, for better or worse, they survived.
The photos, which include a couple slaughtered in bed and a bloodied boy left to die in a hallway, highlight the dark underbelly of a city gripped by violent gang warfare.
These are the haunting images from grisly crime scenes used to crack cases in 1910s New York. This haunting photo of a bloodied couple lying dead in bed was titled 'Double Homicide'
The unsettling photographs, including this one of a homicide victim lying dead in a New York bar around 1916, were unearthed during renovations of the former NYPD headquarters in 2012
The macabre photographs were supposed to be dumped into Hudson Bay but were forgotten. Pictured: Charles murray lies dead with horrific injuries in a hallway on 1st Avenue, New York, in 1915
The gruesome photos, including this one of a woman lying dead in a squalid New York room, have now been collated in a new book called 'Murder in the City, New York, 1910-1920', by Wilfried Kaute
The unsettling photographs were unearthed during renovations of the former NYPD headquarters in 2012 and have now been collated into a new book.
Astonishingly, the macabre photographs were supposed to be dumped into Hudson Bay but were forgotten about and the task was never completed.
This is because the images were used by early twentieth century detectives during their homicide investigations, and the public were never intended to see them.
They give modern-day viewers a fascinating insight into what urban crime really looked like a century ago.
The gruesome photos have now been