As the investigation into a deadly shooting at Brown University continues, officials have not established a motive, but hope new video and a timeline of a person of interest will lead to an identification.

"I have been briefed on the shooting the took place at Brown University in Rhode Island. The FBI is on the scene," President Donald Trump wrote on Truth Social. "God bless the victims and the families of the victims.

An alert sent by Brown University told students to lock doors, silence phones and stay hidden until further notice.