Dark of the Moon by John Sandford

Arriving in Bluestem on another case, Flowers witnesses a huge house afire on the bluff. Sheriff Jim Stryker welcomes his help with this case when it appears that arson and murder is involved. Flowers is his usual "good ol' boy" self, interviewing the community while seeming to share information in a casual aside. In the meantime, a few more people are murdered and things begin to heat up, everyone locking their doors and afraid to leave their homes. Sandford leads the reader on a merry chase, raising suspicion on all the characters involved. Very good read.