Photos from NTSB's report on Big Dig tunnel collapse
The Boston Globe
This is an overhead view of damage to the vehicle, in which Milena Del Valle was killed and her husband, Angel Del Valle, was injured.
This is an overhead view of damage to the vehicle, in which Milena Del Valle was killed and her husband, Angel Del Valle, was injured.
(Photo provided by NTSB)
 STORY: Wide risk, wide blame
 Documents offer peek into probe
Pop-up GRAPHIC: The NTSB conclusions
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