The StoneCutter (S.Lasher & Associates Book 1) (S. Lasher & Associates)

Shane Lasher is a criminal attorney with a grave secret. He is a serial killer who only kills bad guys—his own clients. Shane has spent his life hunting the StoneCutter, one very bad killer. The StoneCutter buries his victims alive and leaves them for dead. One year ago, he was captured and charged with murder. Shane defended him and got him acquitted.

Then he killed the StoneCutter. Or so he thought—it seems his murders have started over again. Now, Shane must find this cold, sadistic killer before it's too late.