The FBI is looking into an apparent manifesto linked to the 15-year-old girl accused of killing a teenager and a teacher before taking her own life in a school shooting in Wisconsin.
Natalie Rupnow, a student at Abundant Life Christian School in Madison, allegedly opened fire with a handgun inside a study hall in Madison, killing two people and injuring six others before turning the weapon on herself.
Rupnow died on the way to the hospital from a self-inflicted gunshot wound, while two other students remained in a critical condition in hospital on Monday night, police said.
