Vigilante

• Vigilante — Heroes Wiki
• Vigilante — Villains Wiki

A vigilante is a man or a woman who takes the law into their own hands (many vigilantes in fiction wear masks and capes - hence the popular title "masked avenger"), they can be similar to anti-heroes and tend to work outside the law as some of their methods includes murder or violence.

Perfect examples of a Vigilante are Dex Parios from Stumptown who tries to stop and detain criminals. Some could even be Tragic much like with Batman from the DC Comics who happens to do the exact same thing but with a tragic motif with his parents and eventually for the sake of protecting those in Gotham.

By vigilantes' ignorance to the justice system, a vigilante could inevitably cause trouble during their actions and had a chance to made a grave mistake by end up killing a wrongfully convicted person and worse, take an innocent life as well