Banshee season 4

If someone tries to impersonate another person, then you should think about what kind of person is trying to hide something from the public eye. It may be an ordinary attempt to disappear from his past existence, and perhaps all the more terrible as happened in this story. The thing is that a murderer and a thief found himself in the tiny town of Banshee, which is located in the depths of the USA country. However, this man decided to impersonate another by selecting for this role is not just local residents, but the sheriff himself, recently slain criminal.
What will be next?