This will be the last update of this article this afternoon. There is a press conference with the FBI at 5P, after which we'll publish a new article recapping the details. What we do know as fact is that the FBI and has made "significant progress" in this investigation.
UPDATE @ 3:02:
The Boston police department has tweeted that there HAS NOT been an arrest made:
UPDATE @ 2:51:
CBS News is reporting that the suspect is a WHITE MALE not 'dark skinned' as previously reported by other outlets:
Additionally CBS News is reporting that cellphone tower data was used to find the bomber:
AP just tweeted that "Federal officials deny that Boston Marathon bombing suspect is in custody." - however AP has NOT retracted that their source confirms so.
ABC News also has NOT reported an arrest:
UPDATE @2:29: We have conflicting reports. NBC is saying that a top official in Boston says that there is NO arrest:
However, a source at the Boston Globe continues to state that a suspect is in custody:
UPDATE @2:21: This is helicopter footage of the Federal Courthouse in that is from Twitter - AP and CNN are reporting that the suspect has been brought here. However, someone can be taken into custody without there being an arrest. No officials have made a statement regarding a suspect in custody and we are reporting based on information from CNN and the Associated Press.
UPDATE @ 2:06 PM: The AP reports that Federal Marshals have a suspect in custody and are brining him to a Federal Courthouse:
UPDATE AT 1:49: CNN REPORTS THAT A SUSPECT HAS BEEN ARRESTED AND IS IN CUSTODY.
Associated Press is also reporting that an arrest has been made:
According to reports on major national media, CNN has broken the story that the FBI has obtained clear footage of a suspect in the Boston bombings. The footage originated from a department story surveillance camera and was used to locate other footage that included images of the suspect from a Boston TV station.