Unanswered questions remain about a fatal shooting at a Madison, Wisconsin, private school Monday as new details emerge about the upbringing of the teenage girl who allegedly opened fire. Investigators are working to piece together how and why 15-year-old freshman Natalie Rupnow,

A Wisconsin police chief says the shooter at a religious school in Madison had two handguns with her but used only one in the attack that killed a teacher and a student and wounded six others.