Tsarnayev brothers suspected in the Boston Marathon bombings had no help

Evidence uncovered so far supports the theory that the two brothers suspected in the Boston Marathon bombings had no help, authorities said Saturday.

"From what I know right now, these two acted together and alone," Watertown Police Chief Edward Deveau told CNN. "I think we have to be ever vigilant, and we're learning as we go along, but as far as this little cell - this little group - I think we got our guys."
Deveau said investigators were continuing to look into where Tamerlan Tsarnayev, 26. and Dzhokhar Tsarnayev, 19, may have gotten the resources to amass the cache of weapons used in the bombings and afterward. "We have to figure that out," he said. "There's a lot more work to go."

But, asked whether Boston residents can rest easy, Deveau said, "We got our two guys."

Boston police shared their Watertown colleague's view. "The hunt is over," the department said in a tweet. "The search is done. The terror is over. And justice has won."

The question of whether others may have played a role in the blasts could affect the decision by federal authorities not to give Miranda rights to Dzhokhar Tsarnayev, who was in serious condition Saturday in a Boston hospital.