Police expect to talk to him more in the future. As of right now, no one has been named a suspect in the investigation. And jacqueline is joined by a team of reporters tonight covering this story from every angle. We begin with the question why the train was speeding in the first place. Nbc10s George Spencer live at the scene. You learned there are several possible explanations . Yeah jim, experts tell me that these engineers really know their routes almost as well as you or i know our own drive way. More than 24 hours later, you can see in our live pictures that the investigative scene is still active and right now, experts are focusing their attention on the engineers experience his condition and whether distraction could have played a role. Trains come past this way or go this way . Retired railroad signal foreman knows this stretch of tracks. For 45 years, hes lived across from it a long straightaway just before the curve, where the amtrak train derailed. With engineer Brandon Bost