Desperation Road by Michael Farris Smith

In the vein of Daniel Woodrell's Winter's Bone and the works of Ron Rash, a novel set in a tough-and-tumble Mississippi town where drugs, whiskey, guns, and the desire for revenge violently intersect.
For eleven years the clock has been ticking for Russell Gaines as he sat in Parchman Penitentiary in the Mississippi Delta. His sentence is now up for manslaughter, and he believes his debt has been paid. But when he returns to his South Mississippi hometown, he faces blood-thirsty revenge. Larry and Walt, older brothers of the young man Russell killed so many years ago, have had the calendar marked. They greet Russell the instant he steps off the bus with hard fists and dire promises.
On the same day that Russell comes back, a homeless woman named Maben and her young daughter trudge along the side of the interstate under the punishing summer sun. Desperate and exhausted, the pair spends their last dollar on a room for the night, a night that ends with Maben...