Four students in Moscow, Idaho, died from an edged weapon, police say

Candles and flowers are left at a memorial honoring four slain University of Idaho students at the Mad Greek restaurant in Moscow, Idaho, on Tuesday. Two of the victims, Madison Mogen, 21, and Xana Kernodle, 20, were servers at the restaurant. (Nicholas K. Geranios/AP)

Police in Moscow, Idaho, believe a knife or other edged weapon was used to kill four University of Idaho students this past weekend, providing an update about a homicide case they describe as "an isolated, targeted attack." Whoever is responsible for the deaths remain at large.

Only limited information has emerged about the killings, as member station Boise State Public Radio notes. Here's what we know so far.