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 someone they believe might have been casing the scene before the attack.

Brown University is mourning the loss of two students killed in a classroom shooting.

Authorities have released a new video timeline and a slightly clearer image of the man suspected in the Brown University shooting.

With the Brown University shooter still on the loose, police fanned out to Providence schools to reassure parents, kids and teachers as investigators push for new evidence that might help them crack the case.