When this happened at UNC-Greensboro, it turned out to be a drug deal gone bad.
Never mind if it’s a drug deal gone bad. The gun grabbers will add it to their list of Fake School Shootings.
Drugs is the first thing I thought. Especially if this took place outside the residence hall.
https://www.cmich.edu/about/locations_maps/CampusMap/WestCampus/Pages/Campbell_Hall.aspx
Bit of backround on Campbell Hall.