It's obvious the leader didn't want to believe Charlie.

However, the way he lost contact with his other men and seeing how the lackey at the door was beheaded was proof Charlie wasn't bluffing.

Even then, he still refused to believe Charlie alone killed everyone outside, and suspected that he had other men outside.

Refraining from firing on Charlie right away, he mused to himself for a moment before telling Charlie, "Come on, bro—we're all just trying to make a living, and there's no need to