Broken prey - John Sandford

The first corpse is found on the riverbank. The second in an isolated farmhouse. Both have been savagely beaten, the skin flayed from their bodies, their throats cut.
For both victims, there's a DNA match. Charlie Pope, a convicted sex offender recently released from mental hospital, has cut off his court-imposed leg bracelet and disappeared. Now all Davenport has to do is find him.
But something about this case doesn't smell right. The killings were meticulously calculated and methodical. Pope on the other hand is of low mental intelligence, incapable of the forethought and planning these murders would require.
All the evidence points to Pope - but Davenport knows it just doesn't fit. Can he prove his instincts are right, and track down a killer as cunning as he is deranged?