According to a criminal complaint, Derrick Lehrke assaulted his wife, Autumn, while she was holding their infant son during an argument Thursday at the couple's home.
Crystal will hold a meeting Tuesday to talk about security protocols. The New Hope City Hall gunman was the subject of a restraining order taken out by the city.
While the high school found no "unsafe materials," students will remain in rooms during class periods today, outer doors are locked and visitors need ID to enter the building, the school said.