Natalie Rupnow, 15, who went by Samantha, a teenage student, at Abundant Life, a Christian school in Madison, Wis., opened fire killing another student and a teacher. At least six other people were injured in the shooting. Police don’t yet have a motive for the shooting ... She was pronounced dead on the way to the hospital, and the evidence suggested she died of a self-inflicted gunshot wound . Police Identify Shooter in Wisconsin School Attack as 15-Year-Old Girl Julie Bosman Dan Simmons Mitch Smith Devlin Barrett New York Times PSYCHO KILLER: MOTIVE UNKNOWN The 15-year-old had a dark past that appears to have included membership in a morbid site called Watch People Die, which disturbingly boasts it has over 3 million registered users. The site includes graphic and upsetting images of people getting shot to death , run over, other school shooters and many international incidents like a 19-year-old man who died after getting caught in a meat grinder. Rupnow, posting under the...