Is Jorge a vigilante superhero?

Jorge Hernandez of my Hernandez series has transformed over the years; from villain to vigilante, but is he a vigilante superhero?

It might seem like a stretch to consider this former cartel member, a man who's killed and murdered numerous people in his lifetime, a superhero. However, in recent books, one could argue that most of his vigilante acts revolve around going up against an injustice of sorts. His most common enemy tends to be Big Pharma, which is hardly a group that conjures up much compassion. For example, in Loyalty Above All (there are no exceptions), Jorge goes after the pharmaceutical industry after he learns they released a drug despite knowing it would cause cancer. So while many may question if revenge is the most moralistic method, there is also a level of understanding of why this character reacts as he does. Especially when considering someone close to him has died because of this medication. 

In many ways, Jorge Hernandez faces the anger and frustration many feel but avenges the powerlessness in a way they can't. This is why the antihero has grown in popularity over the last few years. We've seen this trend in television and, to a degree, in movies. But what about books?

I suspect most writers are careful about how they take on this topic because there's a fine line that most writers do not want to cross.