Multiple sources tell CBS News a person of interest has been identified in the mass shooting at Brown University. CBS News' Tom Hanson reports.
Breakdown
- Person of interest identified in Brown University shooting
- Investigators expand search, canvassing residential neighborhoods 16s
- No video of shooter inside building; all surveillance turned over 33s
- Police reviewing footage with residents and businesses 56s
- Officials say no ongoing threat due to increased patrols 1m 55s