CNN CNN Newsroom With Poppy Harlow May 17, 2015 21:46:00
The engineer pushed the throttle forward. and that's -- we are -- we -- the convenient recorder does record throttle movement. we will be looking at that to see if that dore rescorresponds to the increase in the train. we talked to the engineer, the person operating the train. he was fully -- he was fully cooperative when we met with him on friday and then also interviewed two assistant conductors that were on the train. >> they still don't know why this happened. jason carroll joined me now the human story of all of this is the most important, people that lost their loved ones you just this m...
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