The small girl is named Hazel. She wasn't intentionally murdered by the 'purple guy'. Why you ask?

He actually found Hazel interesting as she was the only child who just avoided everyone else. Hazel, you see, wasn't one that liked other children, a small part of her even wanted the other kids dead because of how loud and gross they were.

How she meet the 'Purple Guy'? She followed him and the other children he lead away. She didn't enter the room, but she watched through the crack in the door as he killed the 6 children. Her eyes wide with happiness and pleasure of watching the other kids dying. As he came to leave he accidentally knocks over Hazel. He looked down at the small child than glanced back into the room. Returning his attention to the girl he smirked.

"Your eyes show blood lust just as mine do every morning I stare into my mirror."

She blinked at him for a second to realize what he said and she smiled brightly. "Yes!" She stood up quickly and hugged his leg as she was just as tall as the grown males hips.

He pat the top of her head and he lead her away.  He brought the small girl to the kitchen and got her a piece of poisoned cake.

Now you must be wondering 'oh he knew the cake was poisoned all along'. He did not actually, for you see the cake was going to be used for the other children, however since the Pizzeria made so many cakes he forgot all about the cake.

Back to the Backstory, Hazel sweetly thanked him for the cake and she ate the cake. The poison worked through her small body quickly. She began to cough and the 'Purple Guy' didn't know what was happening to his small killer 'child'. She dropped the cake and her body grew cold as she fell backwards onto the floor. He let out a string of curses as he ran around the kitchen to find if there was anything to save the child.

Once her coughing fit stop, the male went to check up on the child to find her pale skin, lifeless body, dull eyes staring up at the ceiling. He quickly hid her away to wait for Pizzeria to close so he can place the small child with the other kids.

Before the Marionette was taken to the new location, she/he found the 7 small children and put the six into the animatronics around Freddy Fazbear's Pizzeria. But little Hazel, she/he didn't know what to do with the small child. The Marionette carried the small girl's soul with her to the New Location and there she/he found a perfect fit for the girl. In Mangle's Playroom, she/he found a blonde hair, grey eyed Doll animatronic, created in the same purpose as Mangle was created.

As the Marionette helped Hazel into the Doll, the pretty dolls eye color changed to match it's pervious human's life.

(Now this is my story on how my Oc Hazel/The Doll was created. )