'Murders Before the Marathon': A new documentary examines Waltham slayings and Boston Marathon bombing

Tamerlan Tsarnaev: Mystery Surrounds Boston Bombing Suspect

April 22, 2013: Tamerlan Tsarnaev Called Mother Moments Before Shootout

The jury in the Boston bombing trial was shown distant surveillance video of Dzhokhar and Tamerlan Tsarnaev approaching Officer Sean Collier's patrol car before he was killed

April 19, 2013: Bombing Suspect Dzhokhar Tsarnaev Caught

Boston bombing survivor to run marathon

Boston Marathon: 10 years since bombing

The stories of the Boston Marathon bombing, 10 years later