Investigators believe the trains collided because the tracks were damaged. Some say the damage was done when the trains collided. Others believe it was damaged before the two trains collided with each other. The wreckage of the trains were found to be as far as 200 yards away from the area the accident happened. Many cars that were near the event were heavily damaged. Connecticut governor, Dannel Malloy, believes this investigation will last several days. The FBI were part of the investigations. On May 18, they were no longer a part of the investigation crew.