The photograph used for the deceased numbers runner Peter talks about (known as Eddie Nine Ball by Mozzie shortly after) features the exact same "dead guy" that was used as the photograph of the first of Ghovat's victims in Threads (2009). The only difference between the photographs is the angle at which they were taken.
Al Sapienza who plays Frank Deluca Jr. and Robert John Burk who plays Patrick O'Leary both guest starred as recurring characters Raymond Terney and Patrick Simmons of the law enforcement crime syndicate "HR" on person of Interest.