The Untold Story Ch. 1

So, I'm assuming that you know the story of Death Note? You know where I, Light Yagami, came into the possession of a Death Note owned by a Shinigami named Ryuk, and killed criminals, and becoming Kira. Stuff like that.
But there was actually someone left out of the story. She was actually a pretty important character, and I'm not sure why she was left out, because she pretty much brought the end of me. I like to call her the girl "L" because if you met her, you'd know that she was indeed much like L, except with better eating habits. Her nickname was Ink.But of course, no one knew her real name. They called her "Ink" because of the permanent mark she left on people.
Here's her story starting with the part where I turn myself into L and the Police.

I think everybody, especially my family, was suprised when I turned myself in responsible for the crimes Kira committed.
I was locked in a padded cell for about 4 days
With L and the police monitoring me.
The same with Misa.
She was tied up in a cell though.
Her eyes are covered since L believed the second Kira could kill someone with her stare. L also kept my father locked up, just in case. Of what? I have no idea. But just in case of something. L or one of the detectives occasionally would speak in through a microphone and ask me questions. About killing people and kira and,of course, I denied all of it. And I'm sure none of them believed it. While in the cell, one day, L was asking me the same continuous,annoying questions. Then out of no where, a new voice came in. A girl's voice it sounded. It was a small voice. Rather petite.
"Hello Light Yagami" it came through the speaker.
"Are you kira?"
"NO" I said boldly
"When you get defensive, it tells me something."
I didn't answer.
"So I'll ask again. Are you kira?"
"NO" i said again. I felt a painful shock and I screamed in pain.
"There's an electric collar around your neck. Everytime I believe you're lying, and trust me, I can tell, I press a button, and you get a painful shock sent through your body. And there are 4 notches. That was only the 1st one."
I felt another painful shock and screamed again. This one the same as the last.
"So are you Kira?"
"NO!" I said again cringing
I felt another shock, much worse than the last two. I screamed in excruciating pain.
"You want the 3rd notch?" she said teasingly.
A screech filled the room and I heard a conversation behind the mike.
"Ink," I heard L say, " maybe this is too extreme."
"No L. It's fine. It won't kill him or anything"
"But still,we don't know what shape he's in. It could possibly."
"It'll be fine."
I heard the screech again and she spoke in again.
"Light, do I have to ask you again? Or are you ready to talk?"
"Ink, I think you should listen to the nice man. You know, most men are smarter than women."
I heard her growl and she yelled through the mike.
" Shutup you little trick! I wouldn't be talkin! I could easily kick your ass till the point you had internal and external bleeding!"
" The point of this is to interrogate me. not kill me"
"That could change in 10 seconds flat"
" I-"
I started to say something but another voice came through.
"Ms. Ink, stop verbally assaulting my son. I know you might have some evidence leading to someone in the police or in their families, but Light just isn't the type. He's a good boy. He's nice, polite, and quiet."
There was a pause for a moment before Ink replied.
"It's always the quiet ones, Mr. Yagami, whether or not your son is Kira doesn't mean he doesn't have anything to do with it"
"Ok, but just please take it easy on him"
there was another pause,
"Can do, Mr. Yagami."
"dad..." I said to myself quietly
L came on the screen.
"That's all for now Light Yagami"