Train Sped Up in Last Minute Before Amtrak Derailment

An eighth victim has been identified as the investigation into what caused the train crash intensifies.
3:03 | 05/15/15

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Transcript for Train Sped Up in Last Minute Before Amtrak Derailment
families. The latest on the amtrak disaster. A live look at the scene this morning. The busiest rail corridor in the country still shut down. And today, the final moments before the train went off the rails. Investigators saying it accelerated rapidly in the final minute. David Kerley is in Philadelphia with the latest. Good morning, David. Reporter: Good morning, Amy. They found an eighth victim yesterday. They believe E everyone is accounted for. Why did the train accelerate in the final seconds before jumping the rails behind me? These are the last seconds of the amtrak train 188. Closed-circuit video obtained by WPVI. As the train hits the corner, all we can see is the flash. In the last seconds, the last minute, the eight-car train increased speed, from 70 to 100 miles an hour just 16 seconds before the crash. Investigators have seen the on board video, too. Mere seconds into the turn, we can see the train tilting approximately ten degrees to the right. And then the recording went blank. Reporter: The 32-year-old engineer suffered a concussion and has amnesia according to his attorney, no memory of the moments leading up to the crash. He will talk to investigators. Why did the train accelerate to more than 100 miles an hour, twice the speed limit of the curve? The crumpled remains of the first passenger car and the engine. The engine is equipped with speed control technology. As of this morning, that technology is not along these tracks. By the end of this year, we'll have positive train control in here, lit not happen again. Reporter: When you heard this train was 106 miles an hour in a 50-mile limit, what was your thought? It was a sickening in any stomach. Reporter: Yesterday this boy looking for his dad. My name is Marc Gildersleeve. Reporter: His dad, bob, among the victims. A CEO, a real estate executive. A naval academy midshipman. He had an aura about him. I can't remember a bad memory I had with him. Reporter: Amtrak took me to the scene yesterday. The crumpled first car on the side of the tracks. Just a mess. Crews working feverishly. They hope to have the corridor reopened on Tuesday. David, you mention that investigators do plan to talk to the engineer. Do we know when that may happen? Reporter: It could come as early as today, Amy. They want him to be of sound mind and the ability to recall what he felt and saw and heard. And as the ntsb board member here said, they want him to tell the story before they ask him any questions. Could happen today. David Kerley with the latest. Thank you. That acceleration such a mystery.

This transcript has been automatically generated and may not be 100% accurate.

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