Very little new news to report. Only a rising casualty count.
Boston Marathon Toll rises even higher. More than 120 treated at 7 local hospitals.
— @BostonGlobe via TweetDeck
BREAKING NEWS: The Globe has confirmed that an 8-year-old boy was one of the two victims who died in the explosion.
— @BostonGlobe via HootSuite
FBI official tells @CBSNews officials are going to sweep the entire length of the marathon for additional devices or evidence
— @NorahODonnell via Twitter for iPhone
AP is reporting that the Navy has sent a Rhode Island-stationed bomb disposal unit
to assist in Boston if necessary.