An investment firm identifies those killed in the crash . However , he stressed that the investigation is in its infancy and it is too soon to speculate what might have caused the crash . ` Before the crash , the pilot mentioned icing , NTSB investigator says . The crash 's debris field stretches over a half-mile . Comment:
An investment firm identifies those killed in the crash . Before the crash , the pilot mentioned icing , NTSB investigator says . The crash 's debris field stretches over a half-mile . Comment: