Davis hid in an MSU classroom for four hours.

By Tom Morphet

Only a few hundred feet from the student union where the Michigan State University shooter killed his third victim, a college student from Haines huddled in a darkened classroom with nine others for four hours, listening to a police scanner and texting loved ones to send prayers.

“The union is very close to the music building and to (my dorm),” Mark Davis, a…