Ethan Williams:

Lives in Hunts Point New York, in an old decrepit apartment he can barely afford.
He has many jobs, most are illegal. He used to deal drugs on the streets but got into trafficking things worth more than 50$ a pop five years ago. The majority of his jobs deal in large amounts of drugs and sometimes things that are "living" to countries overseas.
He has never done drugs, although he was given the opportunity many times but turned them down immediately. "You can't use what you sell." He would say. His family has all died from them and he wants nothing to do with using.

He works out everyday, hard, sometimes 3 hours a day in between jobs. His jobs can be dangerous, so he has to be in top shape to defend himself if the situation arises. He has taken up MMA fighting and shoots at the gun range twice a week. He owns four different types of guns including a large sniper rifle which he has only been asked to use once, where he put a bullet through a gang members head. It gave him a heroic feeling like he had taken out something evil in the world even though he was hired by something more evil itself.
He feels no sympathy or remorse when he works. He does his "jobs" with no questions asked and as long as the money comes in he keeps his mouth shut and moves on. This is why they chose him for his ability to push any emotions or feelings aside and never think of it again.
He is tall, tanned with a powerful build, blue eyes and thick black hair. He is heavily inked, with full sleeves up to his shoulders and some Nordic rune markings down his chest. He is always seen wearing a black hoodie, jeans and a white tight T-shirt underneath with converse shoes. He carries brass knuckles in his pocket at all times and tucks a pistol in his belt in the front ready to use when needed. He is clean shaven most of the time, unless he is vacationing then he doesn't give a shit. But he always puts time into himself, he thinks it's important to not show up looking like a joke to the higher ups.

His work has carried him through the last five years making him quite wealthy. But even with all that money he still struggles to pay the bills. He wants out of New York. Its luxurious nightlife and festivities are just a facade that hide its true sinister nature. He was done, and this job was going to be his last.
At a whopping 1.2 million$ he was offered, he jumped on board not knowing what he was getting himself into, not even caring with that much money coming in. Why would he care? He will carry out this mission absent minded and once finished he will move somewhere warm where he can spend the rest of his days drinking tequila on the beach with beautiful women. No more training, or looking over his shoulders. No more walking on the edge of life, peering over it at his fate. This was God's gift to getting him out before something takes his life.