Police in Providence, R.I., and the FBI released new photos and video of a person of interest in Saturday’s deadly shooting at Brown University, as the manhunt for the gunman passes 48 hours.

The investigation into the Brown University mass shooting has dragged on for more than four days with no named suspect, motive, weapon or even a clear image of the assailant's face that might help bri...

This combo image made with photos provided by the FBI and the Providence, Rhode Island, Police Department shows a person of interest in the shooting that occurred at Brown University in Providence, R...