 It has been alleged that the argument was over Selman killing Scarborough's good friend Bass Outlaw on that same date two years earlier.However, this is highly unlikely, as Scarborough and Selman were friendly for many years and Outlaw was generally disliked by the other Rangers - buried with no mourners present.Instead, it is far more likely that Scarborough's testimony when tried for killing Selman was truthful, to wit