Police are still looking for a bicyclist who may have been responsible for yesterday's small bomb blast in Times Square.
Meanwhile, letters sent to many members of Congress with the phrase "we did it" turn out to be completely unrelated. WNYC's Dan Blumberg has more.
It's just a very strange coincidence that the envelopes, complete with a photo of the Times Square military recruiting center and a long anti-war letter, arrived the same day as yesterday's bombing. The FBI questioned the sender in Los Angeles and no charges are expected.
Investigators are examining a possible link to a Canadian border stop in which two individuals fled, reportedly leaving a backpack with photos of New York landmarks, including the military recruiting station.
Meanwhile, New York police were out early talking to people who are normally in Times Square in the middle of the night. Yesterday's 3:45am explosion is similar in method and timing to two previous small blasts at New York's Mexican and British consulates.
I'm Dan Blumberg in New York.