Social media played a big role as the Boston bomber manhunt unfolded following Monday's Boston Marathon attack.
The following are the highlights from the press conference following the arrest of the second Boston bombing suspect, with comments from Boston officials and President Obama:
"I want to thank all of the fighters who worked tirelessly over the last four days," said Col. Timothy Alben. "Let's not forget about the people along the way."
"Cambridge, Boston and Watertown can breathe a sigh of relief," said a special agent in charge of the FBI Boston division.
"Justice is being served for the victims of these terrible crimes," said Mayor Menino.
"There's no explanation for it," Boston Police Commissioner Ed Davis said.
Davis continued with the long process and teamwork of the capture of both bombing suspects.
"Makes me proud to be a Boston police officer; makes me proud to be a part of this team."
"The citizens of this city have been incredible," Davis said. "We're very happy to try to put this back together."
"What we've been through in the last 24 hours, I wouldn't want to see another police department go through," said the Watertown police chief.
President Obama said the following in a press conference around 7:10 p.m.:
"Boston Police tonight… because of their determined efforts, we've closed an important chapter in this.. tragedy."
"Over the past week… sharing information, moving swiftly.. they all worked as they should as a team."
"Our thoughts are with those who were wounded… and we pray for their full recovery."
"We will determine what happened, we will investigate any associations.. We will continue to do whatever we have to do to keep our people safe."
"Whatever they thought they could ultimately achieve, they have failed."
"They failed because as Americans, we refuse to be terrorized."
"We welcome people from all around the world, from every faith, every ethnicity… let's make sure that we sustain that spirit."
"Our thoughts, our prayers are with the people of West, TX… many are injured, many are still missing."
"I'm confident we have the courage, resilience to overcome these challenges."
"I pledge that the people of West will have the resources they need to recover and rebuild."
Davis said the two brothers used homemade grenades and improvised explosives to create "a very well-planned and very effective attack." He said the FBI is involved in an intricate investigation as to the motives behind the Boston Marathon attacks.
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