In 2006, he dies in a prison hospital, from a rare inflammatory disease; the film's closing intertitles indicate that foul play was suspected in his death as he was scheduled to testify at the trial of a Gambino family underboss. Under the alias of Rudy Cooper, Brian came off as a kind and charming man whose occupation was to help severely injured patients. Dexter begins to feel that he's in a dangerous situation, the serial killer knew exactly that he was being followed and lured Dexter into a trap. Debra walks up and makes the same observation, as the real focus is wheeled off to the side: the ice block featuring fingertips. He tested Polifrone's purported cyanide on a stray dog, using a hamburger as bait, and saw it was not poison.

On September 25, 1983, the body of 50-year-old Louis Leonard Masgay was discovered near a town park near Clausland Mountain Road in Orangetown, New York, with a bullet hole in the back of his head. We've had a lot of anti-heroes on TV in recent years, with guys like Vic Mackey and Tony Soprano challenging the audiences' loyalty and asking us to see how much we're willing to accept or root for a person who might have their positive traits, but does a lot of awful things. Brian, although he was intelligent, calculating, and cautious, did not anticipate Dexter's reaction to his demand for Debra's death.Although he was able to provide detailed descriptions of the crimes, Dexter doubted his claim from the beginning as his taxidermy suggested an attempt at creating fake images that the real killer would regard as pathetic, with his theory being confirmed when he met Perry in person and Perry had no idea who he was. Their exact relationship with one another was unclear; however, since Brian did eventually kill him, it is suggested that they weren't close. In 1940, Stanley's beatings resulted in the death of Kuklinski's older brother, 7-year-old Florian Kuklinski (April 11, 1933 – February 1, 1941). Shannon, Franco and Del Toro to Star in ‘The Iceman’" Archived January 26, 2011, at the Wayback Machine.

Dexter, however, was given the means to control and focus his urges, thanks to the first man on scene, Detective Harry Morgan. How do you stop a killer that believes life is a rehearsal for eternity, and their future is worth more than your own…? I know what you’ve gone through all these years -- the isolation, the otherness, the hunger that’s never satisfied, but you’re not alone, anymore, Dexter.After ambushing him at a factory, Dexter went through his usual ritual before ending Jamie's life to appease his own Dark Passenger while also picking up the pieces to dispose of in his boat (as a note: these body parts were likely disposed of before seeing the Ice Truck and he was simply on his way home from the Mariana). It is where he actually dismembered his victims, wrapped up the body parts, and left them in public areas. Brian planned on Tucci being Dexter's kill, so the longer Dexter took to realize the truth the more likely body parts would find themselves showing up at various locations in Dexter's past. After an emotionally charged conversation, Dexter slices his brother's throat and leaves him upside down to drain, staging it as a suicide, while wondering what would happen if everyone knew the truth about him.

When a tired old inmate is found dead in his cell, the prison is obligated to investigate and so DI Barton attends. Ultimately however, to cover his tracks he turns Monique into one of his victims despite the fact that "Imperfection saved her the first time". The earliest known events in Brian's life were the times he spent at his mother's house, roughly around age five.He told Philip Carlo he was hired by John Gotti to kidnap, torture, and murder John Favara, the man who accidentally killed Gotti's 12-year-old son Frank after hitting him with his car. DeMeo tests Kuklinski by having him kill a homeless man, then hires him as an enforcer and contract killer. When the house of the dead man is burgled and that crime is followed by a suspicious fire, Barton desperately needs to speak to his widow, but she’s nowhere to be found. The police rule the Ice Truck Killer case closed, though Doakes keeps close tabs on Dexter, still suspicious of his actions. She met Detective Harry Morgan and began acting as his confidential informant in trying to provide intel that would bring down a drug kingpin, Hector Estrada.