President Barack Obama was notified by top aides of the capture on Friday night of the surviving suspect in the Boston Marathon bombing, a senior administration official said.Obama, who had described the twin bombings as an "act of terrorism," stayed out of the public eye after traveling to Boston on Thursday to speak at a memorial service for the victims. But he was updated regularly by his national security team and planned to make a statement later on Friday night, the White House said."The president has been notified," the administration official said after the 19-year-old suspect was taken into custody in a suburban Boston neighborhood after a massive manhunt.The mood among White House staffers, who stayed late on the job on Friday, seemed to be one of quiet satisfaction, not of elation.