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

Additional police have been sent to Providence schools to reassure worried parents that their kids will be safe with the Brown University shooter on the loose and no indication yet that investigators have zeroed in on a specific suspect in the weekend attack.

An aspiring neurosurgeon at Brown University and a leader of a campus Republicans group were in a study group preparing for an economics final, with the end of the semester in sight.