Just Dalton - The Dalton Series, #9

Dalton had put his past behind him and made a new life for himself in the town of Two Forks, but now the settlement is facing its greatest ever challenge. The nearby town of Sweet Valley is attracting most of the new homesteaders and the few people that do head toward Two Forks are being attacked by McKinley Vinge's marauding bandit gang. Dalton resolves to wipe out the bandits, but his mission takes an unexpected twist when he meets a man who knows about his past.
With this man being determined to take his revenge, Dalton will need all his cunning to defeat him while not destroying everything he has created in his new life.