Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
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(CNN) – The cruel reality of an investigation like the one into Malaysia Airlines Flight 370, is that every one of the 239 people aboard the missing plane is both a possible victim, and a possible suspect.
How do investigators even begin to dissect all the information about all those lives, to look for answers?
Former assistant director of the FBI in New York Bill Gavin breaks it down for CNN's "The Lead with Jake Tapper" to discuss.