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goes wrong. Hello from CNN. I'm Joe Beck, with the five things you need to know for Tuesday,

December 17th.

Police are starting to piece together what happened at the shooting at a private school in

Madison, Wisconsin yesterday that killed a student and a teacher. Six people were also injured,

including two students who are in critical condition. Police say a 15-year-old girl opened fire at abundant Life Christian school before taking her own

life.

Her motive is still unknown, but a law enforcement official told CNN she expressed some of

the problems she was dealing with in writing.

This eight-year-old girl who spoke to CNN affiliate WICS is a student at the school.

There was a teacher and C was screaming like, ah, my leg, help, help.

Do you know that teacher well?

Mm-hmm. What was it like to hear that?

...