Russia has charged four suspects it says carried out the attack in a Moscow concert hall that killed at least 137 people.

on this day

U.S. told Russia that Crocus City Hall was possible target of attack (washingtonpost.com) More than two weeks before terrorists staged a bloody attack in the suburbs of Moscow, the U.S. government told Russian officials that Crocus City Hall, a popular concert venue, was a potential target, according to U.S. officials familiar with the matter.

Address to citizens of Russia (en.kremlin.ru) I am addressing you today in connection with a horrific and savage act of terrorism, which claimed the lives of dozens of peaceful, innocent people – our compatriots, including children, teenagers, and women.