CNN New Day March 21, 2014 10:35:00
Still a possibility is bringing a range of emotions from passengers' families. i spoke with one man whose son is not only missing but of particular interest to authorities. police looking into his background because he has an aviation engineering background. he says he's sure his son had nothing to do with it, he welcomes the investigation and says police have yet to contact his family. on some level do you hope that this is not the plane? >> reporter: for some of the families on board flight 370, the discovery of debris brings despair. for others, hope. omar believes his son is still alive bu...
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