Dzhokhar Tsarnaev, who was seized on Friday night, is now conscious. The 19-year-old is responding to investigators in writing, as he is unable to speak because of a throat wound.
"I am so sorry for the part that I played in ruining this boy's life. I want nothing more than to apologize to his face." --Benjamin Levine, the Boston man whose photograph the New York Post used to imply the wrong people were suspects.
The social media and traditional reports from Watertown, Boston, as police chased, and ultimately caught, a suspect linked to both the Boston Marathon blasts and a Thursday-night shooting on the MIT campus.
After seeing the IEDs used in Afghanistan, India, Nepal, and Pakistan, the Department of Homeland Security warned in 2004 and 2010 that they could come here.
The April 15 attack at the Boston Marathon offered law enforcement officials a glimpse at the good, the bad, and the social that comes with a criminal investigation in the iPhone, Twitter, YouTube era.