We can most certainly say Barn became an anti-hero, which is typically defined as a character performing acts which might be deemed "heroic" (at least in scale and daring), but using methods, manners, or intentions that may not be so - but which are, in fact, often underhanded or deceitful. But, I'm sorry, anyone who might consider Barn widely synonymous with the classic/truest idea of the good guy/hero has some oddly twisted values.
That distinction may come across to some as semantics, but it really isn't. The good guy/hero is not underhanded or deceitful (or, heaven forbid, murderous). And one doesn't have to go all the way back to Barn's initial story to find that all those qualities were still well within him. And truthfully, as I've said before, the fact that they were is what makes him so interesting...