The suspects in the Boston Marathon bombing were Chechen and had been living in the US for approximately one year, the AP reported Friday citing sources. The surviving suspect has been identified by the AP’s source as Dzhokhar A. Tsarnaev, 19, of Cambridge, Mass, according to a Tweet by the news agency. A second suspect was reported dead earlier Friday. Boston Police Commissioner Edward Davis confirmed via his Twitter account the death of one of the suspects implicated in Monday's Boston Marathon bombing which left three dead and upwards of 176 injured, stating simply: "One suspect dead. One at large. Armed and dangerous. White hat suspect at large." Two blasts occurred at the finish line of the Boston Marathon. Three people have been confirmed dead, 176 injured.