A teenager working as a part-time coat check attendant at Moscow’s Crocus City Hall has gone viral for helping dozens of people safely evacuate the building during Friday’s deadly attack. Islam Khalilov, a Moscow high school student whose family comes from the Central Asian republic of Kyrgyzstan, quickly moved to open doors and provide exit directions when he saw a large crowd of people running from the besieged concert hall. “I realized that if I didn’t react, then I would lose my own life and the lives of many others [around me]. To be honest, I was very scared,” Khalilov, 15, told Moskva O…