Sullivan was an officer of the New York City Police Department.
The New York City Police Department was in a state of alert when explosions rocked Hell's Kitchen.
Officer Sullivan heard screams as he walked near an Abandoned Building. When he saw an unconscious man on the floor, he told him to put up his hands. The masked man told Sullivan that he could not before beating up the cop. The masked man then asked Sullivan for whom he worked, testing to see if he was corrupt. Sullivan replied he was a police officer; listening to heartbeats, the masked man knew he was truthful. However, instead of saying that he had a false alarm, Sullivan called for assistance.
Sullivan was later handcuffed to a pole and gagged by the masked man. His gun was dismantled by the masked man. After the masked man and Vladimir escaped to the sewers, a corrupt SWAT officer arrived and stabbed Sullivan in the neck. Sullivan's death was later blamed on the masked man.
- SIG-Sauer P226: The SIG-Sauer P226 is one of the standard weapons of the New York City Police Department, and Sullivan carried it as his service weapon. He used it when he examined an Abandoned Building where he had heard a noise, believing the man in the mask was hiding inside. He was right, and the masked man disarmed him before he had any opportunity to use the weapon.