Vicious Circle by C J Box

Vicious Circle by C J Box is the latest Joe Picket novel. Joe is a game warden in Wyoming who frequently teams with local law enforcement to solve serious crimes. In this novel, the murderers are coming after him, his family, his horse, and his dog. He has dealt with the Cates family in the past, and the survivors are bent on revenge. His friend, Nate Romanowski, a falconer who retired from covert operations for the government, volunteers to help and finds himself in much danger.