only americans killed when the "costa concordia" capsized in january. the heil family thanked the recovery crews. they said they will now be able to move forward and bring their parents home to rest. >> they were even prepared that the remains might never be found. but i think now that they know that the remains -- that it was their parents, that they did pass away on the ship, that this will help bring some closure to it for them. >> jerry was one of the instructors for teaching the kids religion. and then barb worked with homeless and the dorothy day center. >> sounds like they leave behind quite a legacy. the heils saved a lifetime to go on that cruise. they leave behind four children and 15 grandchildren. a government investigation is blaming pilot fatigue for a stunning mistake that led to a terrifying midair nosedive by an air canada flight. passengers say it was 46 seconds of utter fear and panic. abc's chief investigative correspondent brian ross has