A Cold And Short Story

I have a cold, or allergies, or something. I've been sniffling and coughing, my head hurts, and I feel nauseous. The nausea is mostly in the morning, but it lasts through the entire day. It's worst in the morning though. Anyway, I have plenty to do. I have to have my characters planned out in detail for my English class tomorrow. We're writing short stories and I know pretty much nothing about my characters so far. But the basic plot is a dishonorably discharged soldier who has taken it upon himself to kill those he determines are criminals. They're people who either can't be convicted or were found innocent, but he believes are guilty. I need character descriptions though. 
                                                                    ~The Blogging Fangirl