In the "Deal" storyline, Roman is inadvertently killed at his wedding by an assassin sent by Dimitri, in an attempt on Niko's life.
Niko also has three other optional girlfriends: Carmen Ortiz, Kiki Jenkins and Alexandra Chilton.Niko came into the United States as a personal call from Roman. Roman and Niko's fathers were brothers, and like Niko's father, Roman's father was also an abusive alcoholic.Niko is criticized by many of his friends and (most notably) by Roman for this weakness.His first girlfriend was Michelle, whom he later leaves after she turns out to be an undercover detective, and his later girlfriend, Kate Mc Reary either dies at the end (if the player chooses Revenge) or feels disappointed in Niko for violating his principles, but forgives and consoles him in his time of loss (in Deal).The game also has two possible endings, which is determined by a decision the player makes with the main antagonist towards the conclusion of the storyline: Revenge or Deal.
Each choice affects the missions the player can partake and the fate of some characters. Niko witnessed many atrocities and war crimes, including a number of children lined up against a church wall, each with their throats slit and hands cut off.He later discovers that two other members of the unit also survived, and concludes that one of those two sold the unit out for money.Niko vows to track down the culprit, motivated not solely by revenge, but a need for closure and to move on with his own life.Niko admits that Roman has indeed found some success in America because of Mallorie, Roman's longtime girlfriend whom he later weds.During the course of the game, his apartment and business are burned down by Dimiltri Rascalov and the Liberty City Bratva.A number of recurring characters appear in the video game Grand Theft Auto IV, set in 2008.