Wisconsin school shooter had 2 guns and got messages from man accused of plotting his own attack

The shooter who killed a student and teacher at a religious school in Wisconsin brought two guns to the school and was in contact with a man in California who authorities say was planning to attack a government building, according to authorities and court documents that became public Wednesday.

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Police were still investigating why the 15-year-old student at Abundant Life Christian School in Madison shot and killed a fellow student and teacher on Monday before shooting herself, Madison Police Chief Shon Barnes said. Two other students who were shot remained in critical condition on Wednesday.

"We may never know what she was thinking that day, but we'll do our best to try to add or give as much information to our public as possible," Barnes said.