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.
2013.5.20 2 FBI Agents Killed In Training Accident (NewsyHub, youtube.com):
Special agents Christopher Lorek and Stephen Shaw were part of the Hostage Rescue Team, a full-time counter terrorism tactical unit.