Students at the middle school in Skokie that was closed after threats head back to class today.
McCracken Middle School was closed for two days as authorities investigated a series of threatening Instagram posts delivered to sixth graders.
Authorities said a student from McCracken sent the posts.
School officials said students involved in the posts will not be in school today.
Police will be at the school as students arrive and leave.
All before and after school activities are cancelled.