Ex-comedian Caimh McDonnell’s fast and funny crime fiction series starring Bunny McGarry, a violence-prone but (in my eyes) lovable Irish thug now roaming the streets of New York, is always a blast. “I Have Sinned” is no exception, plonking the sharp-tongued thunderball into a wild caper involving a padre, an order of Sisters, and a weird gang of assassins. The author is a master of madcap, with several of the set-piece scenes (including the very first one), making me guffaw aloud. In pace and mode and sharpness of wit, it reminds me most of Carl Hiaasen, and that’s no small accolade.