Ann Arborโs Pioneer High School closed Tuesday over social media threatPioneer High School will be closed on Tuesday, officials said.
Ann Arbor Public Schools to close Friday amid possible violent threatsAll Ann Arbor Public Schools buildings will be closed on Friday as the district, law enforcement review threats made online.
University of Michigan President: Online shooting threat mitigated by FBI, campus open MondayClasses will continue as normal on Monday, announced U-M President Mark Schlissel after shooting threat made over weekend.