It's been one harrowing week since the Boston Marathon bombings. As the city and nation remember the victims, details about the suspect in custody, 19-year-old Dzhokhar Tsarnaev, continue to unfold. He has been formally charged at his hospital bedside and is apparently communicating with investigators despite his serious injuries. Plus, the carjacking victim from the intense manhunt has come forward with details from his time with the brothers.