May 22, 2014 — Prosecutors revealed new details about the bombs that exploded at the marathon finish line in April 2013, defending FBI questioning of Dzhokhar Tsarnaev as he recovered from gunshot wounds.
May 8, 2014 — The agents said they needed to be sure the threat to public safety was over; the filing says they went too far, in an attempt to "extract as much incriminating information as possible."
Apr 16, 2014 — Prosecutors said it would disturb the families of those who died to know that Dzhokhar Tsarnaev could view those images. The judge ruled Tsarnaev has the right to see such evidence.
Mar 28, 2014 — The government denies that it ever tried to recruit Tamerlan Tsarnaev, who was killed during a gunfight with police.
Mar 21, 2014 — Twenty-seven-year-old Ibragim Todashev was killed while being questioned by agents in his Orlando home about his friendship with suspected Boston Marathon bomber Tamerlan Tsarnaev.
Oct 23, 2013 — Tamerlan Tsarnaev died after a gun battle with police. A friend, who's also now dead, told investigators that Tsarnaev was involved in a 2011 triple murder. Tsarnaev and his brother Dzhokhar are the lone suspects in last April's bombings at the Boston Marathon.
Sep 13, 2013 — The three 19-year-olds are accused of misleading police or destroying evidence to help Dzhokhar Tsarnaev evade capture.
Aug 29, 2013 — Robel Phillipos is accused of lying about what two other of Dzhokhar Tsarnaev's friends had done. Those two have been charged with trying to destroy evidence that linked Tsarnaev to the marathon bombings.
Aug 28, 2013 — Photos taken by a Massachusetts State Police sergeant show the bloodied suspect being taken into custody. They also show him getting medical treatment at the scene.
Aug 20, 2013 — A doctor's testimony about Dzhokhar Tsarnaev's condition was released this week. The 20-year-old has pleaded not guilty to charges related to the Boston Marathon bombings and the murder three days later of a MIT police officer.