Serial Killer

My name's Johnson, Haley Johnson. I'm now 25 years old and I had a boyfriend three years ago until everything happened. When my sister died, that's when I lost everyone. My mom died from cancer when I was 4, Dad died from a shooting when I was 6. All I had to rely on was my sister, Sophia. She was 32 years old and she cared for me all my life since we had no parents or any known relatives. But then Sophia died... here's how. Sophia went on a two month vacation to go visit some friends in Europe. When she was coming home, someone shot her. From there, I went insane, literally. I couldn't stand not having my sister with me but then again, she was always the spoiled kid in the family. That night before she died, I went to a few different stores to get some materials for my school project. I got some rope, paint, a hammer, an ax, and a mini gun. My "project" doesn't have to be turned in for a few weeks, so I set out to find the person that murdered my sister, and when I find them, they'll regret killing anyone. I stayed another night with my boyfriend until the next day, then I would leave. Early in the morning around five, I got up and left. I didn't leave a note, a sign, or anything to let him know I left, I just went. It was none of his business anyway of what I was doing, right? He never even liked my sister anyways. I ditched town for about 2 months then I came back the same road my sister came home on, it was in a rich neighbor hood with no harmful people at all. Well except me... The reason no one went to shoot at me was because there was no crazy murderer going around because it was me that killed her. Yes, Sophia's 25 year old sister. Brunette girl with soft green eyes, no one would have ever expected me, a shy girl that seemed innocent. I was always jealous of her; she got everything she wanted while mom and dad were here. What did I get? A total of four toys every Christmas. But now, she's out of my way. I went home later that night fake crying walking into the door and here comes my boyfriend. He's giving me a big warm welcome home hug, I guess he thought I needed some 'time to myself.' Before you knew it, I whispered in his ear, "I killed her, you're next." Before he had time to run away, I grabbed my hand gun and shot him. He was gone too, now I literally have no one but it's my fault. I stood there thinking... what did I just do... I sat down and watched cartoon network for a few hours. 2 am... *knock knock* I open the door and there's three guns pointed at my face. "We traced your marks. You killed your sister two months ago on the night of October 13, 2003." My eyes got wide. How did they find me... "I have no idea who you are or what you're talking about. I only have three brothers. Never had a sister." They told me they would be back the next day and they left. I sat  down again and started watching TV. After about twenty minutes of watching TV, *BANG* I was gone. Going to be with my sister and boyfriend, but probably to hell instead. I deserve it. I didn't like the life I was leading and I didn't want to hurt anyone else. I didn't wanna have kids then them follow in my foot prints but I didn't wanna die in jail. I'm not sure what happens from here cause well... I'm dead.