Jonathan "John" Wick, born Jardani Jovanovic, is a legendary assassin and former Marine that worked for the Tarasov Mob until his retirement. John went back into action after the son of his former boss, Iosef Tarasov, murdered his pet dog that was given by his late wife.
An orphaned Russian Romani born in Belarus, John was adopted by the Director who brought him to the United States and trained him to become an assassin. At some point, he joined the Marines where he first met his close friend Marcus. After leaving the Marines, John joined the Continental, a hotel catering exclusively to criminals, and gained a legendary reputation for being efficient, which earned him the attention of mob boss Viggo Tarasov, whom he established a professional relationship with. Eventually, he met his future wife Helen and after completing an impossible task, which required the aid of Italian mob boss Santino D'Antonio, was allowed to retire and settle down with her.
Their union was a happy one but didn't last long as Helen eventually died due to cancer. As a way to help her husband cope with her death, Helen left John a dog called Daisy. Daisy was killed however when a group lead by Viggo's son, Iosef, broke into his house to steal his car. Enraged, John went on a manhunt for Iosef, killing everyone in his way and even Iosef himself.
Upon returning home, John found Santino waiting for him, demanding that he repay his debt to him by assassinating his sister Gianna. Though reluctant to do so at first, John agrees as to not break the rules of the Continental. He succeeded, though Santino backstabbed him, hoping to claim the bounty on John's head. In response, John killed Santino but made the mistake of doing so inside the Continental, marking himself as a target for other assassins.
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To be written.