This could just be a coincidence, but it's worth noting, especially considering all the deaths connected to this case...
2013.5.20 FBI; Agents Died In Fall From Helicopter Off Va. Coast (hamptonroads.com):
Last month, the team was involved in the arrest of Dzhokhar Tsarnaev, a suspect in the Boston Marathon bombings. And in February, it rescued a 5-year-old boy held hostage for six days in an underground bunker in Alabama.
More...
http://hamptonroads.com/2013/05/fbi-agents-died-fall-helicopter-va-coast