- Moscow attack: As Russia mourns victims of concert hall shooting, how will Putin react? BBC.com
- Moscow concert attack survivors describe nightmare of fear and death USA TODAY
- Thousands gather in Russia to mourn victims of concert hall attack CNN
- Moscow Concert Hall Shooting: Russia Observes Day of Mourning for Victims The New York Times
- Terrorist attack exposes Putin’s vulnerabilities in Russia The Washington Post
Moscow attack: As Russia mourns victims of concert hall shooting, how will Putin react? – BBC.com
