Boston Bomber Names Reported on Scanner DIFFERENT Than Names Received by NBC

Developing. From NBC:

The Boston Marathon bombing suspects — armed with explosives and guns — battled law enforcement officers in a Boston suburb early Friday morning, unleashing chaos until cops took one of the men into custody and the other fled, law enforcement sources said.

Officials later said the suspect taken into custody died and authorities identified the man on the run as the "white-hat" suspect, referencing photographs released by the FBI Thursday. Authorities warned he should be considered armed and dangerous.

The standoff in Watertown, Mass., erupted shortly after the fatal shooting of a Massachusetts Institute of Technology police officer. A transit police officer was also wounded in the Watertown fire fight, officials confirmed to NBC affiliate WHDH.

According to multiple sources, NBC is witholding the names of the Boston Marathon bombing suspects that they have. It has been reported that the names are different from those released over Watertown's police scanner.