Since I live here, it's been live coverage for the last five hours. Pre-empting local programming on all stations.
What has been reported thus far;
2 dead one of which was an 8 year old child, 100+ injured with multiple amputations reported from local hospitals around Boston.
2 additional devices located, nothing further to report.
The fire at the JFK library was unrelated as reported by the BPD and FBI.
I watched the explosions multiple times since about 3:30. The first was directly across from the main grandstand that had families from the Sandy Hook incident. Not known how many may have stayed since the race winners were already through at 2:30. Another blast can be seen on the video about 100 yards further up the street.
There are no news crews allowed in the area at the moment!