Nearly two weeks after a deadly Amtrak derailment in Philadelphia killed 8 people and injured more than 200 others, investigators are still trying to piece together what led the train to enter a sharp curve at more than double the 50 mph speed limit.
The National Transportation Safety Board has ruled out the locomotive being hit by a bullet and is now focused on whether the engineer was using his cellphone while operating it.
Funerals have been held. Lawsuits have been filed. And all but a few of the most seriously injured remain hospitalized. Here are a few key questions and what we know right now:
[NATL] Dramatic Images: Amtrak Train Derails in Philadelphia
Copyright The Associated Press
