Hm... By 'Vigilante' do you mean Superpowers, Ala Comic Books/Video Games? 
Or a Kickass-esque story where an average joe learns martial arts, wears his underwear on the outside, and beats up thugs?

EDIT: 
[url=media.tumblr.com/tumblr_lsy275NUDX1qai9h9.gif]Whoops![/url] Missed Rule #5. I've no problem with it myself, but I tried [i] not [/i] fading to black once, never tried it again.