The surviving suspect in the Boston Marathon bombings has reportedly told investigators he and his brother initially planned to strike on the July 4th holiday. According to law enforcement sources, Dzhokhar Tsarnaev said the attack came earlier because the brothers completed their bomb making more quickly than planned. The New York Times reports the Tsarnaev brothers considered suicide attacks and viewed many online sermons by the U.S.-born cleric Anwar al-Awlaki, killed by a U.S. drone strike in Yemen in 2011.