The Halloway Hotel is the site of an undisclosed massacre which took place during the 1930's on Being Human US.
The Hotel is a spiritual "nest" for the Vampires. The massacre is assumed to have been carried out by Aidan and Suren. Suren was buried in the earth for 80 years as punishment for her part in the mass murder and shortly afterwards Bishop was named leader of the Boston sect by The Dutch.
The Hotel has once again become the home of the Boston Vampires as Mother chose the location to hold a meeting of the Elders and name her "daughter" Suren as leader of Boston.