Wanted for Murder

The first killing {FLASHBACK}

I was sitting in my office when a here someone scream, I run out to find the scared body of my secretary, Astoria Greengrass, I scream and soon Harry comes in gasping at the sight.
"I was in my office when someone screamed, then I walked out and found this!" I say tears running down my face.
"It's okay Mione, I know it couldn't have been because I saw a clocked figure walk out of here only a minute ago, when I was talking to Percy across the hall. 
The next day Hanna Longbottom (née Abbott) was found in front of my flat by the maintenance guy, with the same scarring.
Kingsley, knowing that spell was mine and that it had gone missing last week, was starting to suspect me.
He asked Ginny to "hang with me" but I knew that she was really just watching me because the next day she was found dead in her bed (HaHa didn't mean for that to rhyme) with the same scarring. I decided to go to Kingsley and yelled at him telling him that it wasn't me but he wouldn't listen he locked me up in Askaban for three years. Truth is I went a little bit insane in there. I was always twitching and had a bit of a crazy look in my eye. They had broken me. Then the murders started again, with every one I cried. Then the wanted poster were put up, and my friends tuned their backs on me. I ran since I was an Ex-Auror I was well trained at hiding. I figured that I would just keep running.