Nick West is an agent with the Department of Homeland Security.
When we first meet West, he is on his way out the door. Not from getting fired though that came close and could still happen but because his boss, or at least the boss before West's recent transfer to D.C., knew a forced vacation was needed to cool the man down. West wanted a transfer to be closer to his wife, a veterinary in Atlanta. What he got was a move further away and a major jerk of I.A. man causing trouble to boot. When that man took a nasty tumble and then falsely blamed the two missing front teeth on West, things did not look good.
That is what I have so far. More when I have finished the books.