ATF: The prayers of every ATF employee will go out to the victims.
Suffolk DA Dan Conley: Our business is about accountability. Can't tell you how pleased I am that the second suspect was taken alive.
Q: What happened at the boat? Davis: A call came in - a man had gone out of his house and saw blood on his boat. He lifted the tarp and saw a man inside covered in blood. He retreated and called police.
Davis: We exchanged gunfire with the suspect. The hostage rescue team tried to talk him out of the boat, but he was no communicating.
Davis: The citizens can be confident that the threat has been removed.
Davis: Suspect is in serious condition.
Davis: The suspects came to our attention after the vicious assassination of a police officer at MIT and a subsequent carjacking.
The Globe is reporting that the suspect is at Beth Israel Hospital.
Davis: No report of explosives on the suspect in the boat.
Davis: In the exchange of gunfire last night, there were IEDs.
US Attorney: There is an exemption for law enforcement to have to read a Miranda warning in the case of public safety, terrorism, etc.
Watertown PD: He did not go straight to the boat. We found blood inside the car we found and behind a house just outside of the perimeter.
State Police: A thermal device on the SP helicopter detected him on the boat.
Q: Is there a chance he won't make it? SP: I do not know.
Boston Athletic Association expresses thanks to law enforcement community via its Boston Marathon Facebook page:
The B.A.A. joins all citizens of the Commonwealth of Massachusetts in thanking the federal, state and city law enforcement community for the resolution of today's manhunt. BOSTON Stands As One!
At this time, we remember Martin Richard, 8; Krystle Campbell, 29; Lingzi Lu, 23; and Officer Sean Collier, 26. We also remember all of those injured on Monday, and their families.
President Obama: We owe a debt of gratitude to all our law enforcement officials.
Obama: We send our condolences ot the Collier family, who lost their son Sean, police officer at MIT.
Obama: Whatever hateful agenda drove these men to these hateful acts cannot prevail. They failed because of the people of Boston. We will not break the bonds that hold us together as Americans.
Obama: Our nation, and the city of Boston, welcomes people from all over the world. So as we continue to learn more about how and why this tragedy happened, let's maintain this spirit.
Obama: Don't forget the tight-knit community in West, Texas that also experienced a terrible tragedy. They will have the resources they need to recover.
Obama: we have the strength and resiliency to overcome these challenges and move forward - one nation under God, indivisible, with liberty and justice for all.
The crowd in Watertown is still cheering the law enforcement officials who are leaving the scene with lights flashing and sirens blaring. People are spontaneously singing "Sweet Caroline" and the national anthem and waving American flags.