My OC: Dagger's Story

Hansfield Rehabilitation Center

After knocking Danny out with tranquilizer darts, the staff at HRC dressed the child in a crisp white straitjacket, and they locked her up in a cell. Hours later, when Danny woke up, they had a doctor attempt to calm her - unsuccessfully.
Years passed. When Danny was 6, they allowed her to meet the other patients for the first time. During a "group hug," Danny pounced on another patient and had to be restrained.
When Danny was 8, she pulled out a loose tooth, broke it on the floor, and used it to stab a staff member in the eye, earning Danny the nickname "Dagger."
When Danny was 12, she bit an unsuspecting doctor on the leg, and the wound needed stitches.
When Danny was 15, she started acting very strange. A few weeks later, there was a red stain on the floor, but Danny seemed fine. She was wearing a thick cloth wrapped around one hand.
And the day after that, the doctor that checked on her was found dead. They couldn't find the weapon.