I read 'The Religion' by Tim Willocks last year, which was one of the best books i have ever read, and finally got round to trying another of his books.
Whilst Green River Rising is not on the same epic scale as The Religion it is still one hell of a read. Willocks creates characters that you really care about, in this case Klein and Devlin and Coley, and writes in a very fluid and intense style.
His books are not for the faint hearted, but if you have the guts then he is an exceptional story teller!