Brown University Shooter Remains At Large

Authorities are asking the public to review any security or phone footage from the week before the mass shooting at Brown University in the hopes it might help investigators identify the suspect, believing he may have cased the scene ahead of time. With the search for the shooter in its fifth day Wednesday, the city of Providence is on edge, with investigators showing no sign that they're close to figuring out who was behind Saturday's attack that killed two students and wounded nine others. The request to review older video came after authorities released several clips from the hours and minutes before and after the attack. In all of those, the suspect was masked or had his head turned.