Before this Stranger appears on the world map in Red Dead Redemption, the player needs to complete the side mission «The Wronged Woman». Head to the Blackwater saloon to start this mission.
On the porch of the establishment, you will see a man named Abner Forsythe. After talking to him, you need to head to the other end of town to speak with the speakeasy owner named Philips. Philips will tell you that Abner poses a threat to his business and asks Marston to kill him. You can choose: kill Abner or warn him of the danger. Rewards: