This looks brilliant.

Name: Dmitri Koslov
Gender: Male
Age: 24
Appearance: Eastern-European, 5'11, Dark unkempt shoulder-length hair, Rough beard, Green Eyes.
Personality: Dmitri is essentially the strong silent type. He has not spoken a word since a Russian Mafia boss had his tongue cut from his mouth in 2010. His demeanour is what some would call sour, but he prefers 'focused'. 
Background: Born in 1991 in the soon-to-be former USSR, the Soviet Union dissolved a mere eight months after his birth. His mother was a cook and his father a soldier.. a soldier and a drunk. At the age of fourteen Dmitri watched in horror as his father brutally beat his mother to death in an intoxicated rage. Dmitri served four years for severing his father's neck with the axe he was forced by the old man to cut firewood with in the freezing Russian winter it would have been much longer had the crime not been in self defence. Upon his release from prison he was hardened by a further six murders and several maimings, he had become connected with the criminal underworld and began to forge out a new life as a low level hitman for local mob bosses. After recovering his incident in 2010 with Ivan Solvik - a local crime lord, he returned and slaughtered the man's entire family. On the run from the Russian mob he traversed half of Europe before finally meeting a man at an underground fight club in the Czech Republic, a man in a suit and tie who made Dmitri an offer he couldn't refuse..
Weapon of choice: Sharp objects, Axes/Blades/Shivs
Preferred method of killing: Dismemberment.
Theme music:https://www.youtube.com/watch?v=RYM9IylxOQY