Leads in Times Square bombing fizzle

Investigators trying to track down the person who set off a small bomb in front of a military recruitment center in Times Square have dismissed one lead and are casting doubt on another.
The person who sent letters to members of Congress that included a photo of the recruitment station "is not the bomber" who attacked the building Thursday, law enforcement sources say.
"The letter's really innocuous," New York Police Commissioner Ray Kelly told CNN's "American Morning" Friday. "It's really advice to the Democratic Party as to how to win the 2008 election."
The letters drew suspicion because they were delivered to members of Congress the day of the bombing and included a picture of the recruitment station with the words, "We did it."
Kelly said the letter writer claims the picture was the writer's 2006 holiday card and the words "We did it" referred to the Democrats' takeover of Congress in that year's elections.