You and Arthur had been partners for a while now. When bounty hunting, he was extremely helpful, since he was pretty good with a gun. You didn't question how secretive he was about himself, since most were.

"Blackwater? Are... you sure there isn't anywhere else we could go?" he asked nervously while throwing the bounty onto the back of your horse, ignoring the mans protests. The two of you had to trade the bounty in for the for the money in Blackwater, but Arthur couldn't go back to that town without being shot on sight, not that you knew that. You didn't know anything about his life as an outlaw, nor the thousands of dollars he was wanted for.