article_snippet.sent: It had been almost two years since Dzhokhar Tsarnaev and Dzhokhar Tsarnaev brother planted bombs at the Boston Marathon, setting off deadly explosions that wounded CNN)Rebekah Gregory and hundreds of others.
article_snippet.sent: As Tsarnaev fidgeted and scratched the back of Tsarnaev head, some survivors and victims' family members lowered some survivors and victims' family members heads and dabbed tears.
article_snippet.sent: The family of Sean Collier, a 26-year-old police officer shot to death in his patrol car on the campus of the Massachusetts Institute of Technology, said Tsarnaev and Tsarnaev brother, Tamerlan, were terrorists who "failed monumentally" in striking fear in people.
article_snippet.sent: This was a community that suffered greatly after the bombing and subsequent manhunt.