Gun Street Girl, McKinty - B+

                  This, the fourth in the series, is the best by far. Duffy's team is working on a series of garden variety murders, the solution of which looks too obvious and unlikely. They dig deeper and stumble upon a caper involving the theft of missiles from a Belfast manufacturer. An American Marine lieutenant colonel is somehow involved, but he manages to get away. As is often the case, Duffy suffers a remarkable sequence of injuries including a beating at the hands of the Yanks. This is his last case with the RUC since he's accepted a position with MI-5. Unfortunately, a helicopter crash ends his new job offer and it's back to the Carrickfergus office, the ultimate RUC dead end.  Once again, brilliant story-telling, perfect pacing, and unending insights into the Troubles.