I have two additional authors to suggest: Michael Connelly and his character Harry Bosch, a LAPD police detective who has to track down crimes and deal with administrative politics at the same time; and Lee Child with his invention Jack Reacher, a man who lives on the street and by his wits, a former Army MP who manages to get imbroiled in various escapades and uses his unconformed approach and manner to solve those problems.
Jay,
Just wanted you to know that to date, I've read about 10 or 12 of Connelly's books and really like them. In fact, since you recommended him, I've bought almost all of his books on Amazon and am slowly working my way through them.
However, so far I haven't been all that impressed with Child's books. I've read about 7 of his and so far, only liked one pretty well.
Every time I discover (or hear of) a new author, I like to start with their first title and work my way forward chronologically. Sometimes they get better as time progresses and sometimes they get worse. Almost without exception, Connelly's have been good from the get-go but I can't say the same for Childs.