make a nice criminal this time or or looks like a softie but is not very demonic and cruel and scary at times

Dude who lost his family in a apartment fire and wants to avenge them by doing whatever it takes. Also has a twisted view of justice and will betray you in a heartbeat if you get in the way of his plans Or a sly criminal who is playfully flirtatious just to get a rise out of people and enjoys messing with cops by leaving notes and their signature item. Plus nobody knows what they look like