Brown University engineering student Chiangheng Chien recounted hiding in the campus lab and being searched by police during the shooting on Dec. 13.

Hundreds of police officers were scouring the Brown University campus along with nearby neighborhoods and poring over video in the hunt for a shooter who opened fire in a classroom, killing two people...

Authorities reported that a male, dressed in black, exited a campus building onto Hope Street, a main artery, and then seemingly disappeared into the night.