Lawrence Block 
In the Midst of Death 

Bad cop Jerry Broadfield didn’t make any friends on the force when he volunteered to squeal to an ambitious d.a. about police corruption. Now he’saccused of murdering a call girl. Matthew Scudder doesn’t think Broadfield’s a killer, but the cops aren’t about to help the unlicensed p.i. prove it – and they may do a lot worse than just get in his way.