The Moscow concert hall attack wasn’t the first during Putin’s 25-year rule The Associated PressDeath toll rises to 133 in Moscow terror attack, 11 suspects arrested Fox NewsAppalling Moscow terror attack is a blow to Putin, who promised Russia security CNNIslamic State releases photo of alleged attackers in Russia shooting ReutersPutin says gunmen who raided Moscow concert hall tried to escape to Ukraine. Kyiv denies involvement Yahoo! Voices