MILWAUKEE — The mayor of Madison, Wisconsin, got heated during a news conference Tuesday when reporters pressed for more information about the shooting at a private Christian school that left a teacher and a student dead and six others injured.

The suspect was identified Monday night as 15-year-old Natalie Rupnow, an Abundant Life student. She died on the way to a hospital of what police believe to be a self-inflicted gunshot wound, Barnes said. Here is what we know about the shooting and the ongoing investigation:

When media pressed for more information on Monday's school shooting, including about the victims, Madison's mayor got heated, saying it's "absolutely none of y’alls business."