Brian Baxter, 21, of Fayette, was arraigned Wednesday on a felony charge of making a terroristic threat and released on $20,000 cash bond.
Illinois jail remains on lock down while weapons and homemade alcohol that were found are being investigated.
A southern Illinois prison is on lock down after a weekend altercation left four guards with slight injuries.
At Kirkwood High School the employee managed to evade the school resource officer and pass several classrooms.
All entrances to the school were sealed off by police around 7 a.m. as students inside took to social media to explain what they were hearing.
Classes are going on as scheduled after a suspicious person forced Francis Howell High School and Francis Howell Middle School no a lockdown on Tuesday morning.
Teachers at Southwestern School District in Piasa, Illinois are once again teaching in caution after a threat was found at a middle school.
Wentzville Police say a situation is unfolding in a nearby neighborhood.
Union School and Lindenwood University were put on a brief lockdown Tuesday afternoon.
The Washington Missourian paper reports that the suspect was captured on a deck of a home near Holtgrewe Road, west of Pottery Road.