At least seven people are dead and more than 140 hospitalized after an Amtrak Train derailment near Philadelphia. One of those dead died in the hospital, where others remain in critical condition. Philadelphia mayor Michael Nutter says not all passengers have been accounted for yet. Rescue crews fear that there may be more casualties beneath the wreckage in Philadelphia’s Port Richmond neighborhood. There were 243 people on board Northeast Corridor Train 188, which was traveling to New York from Washington, D.C., before all seven cars came off the tracks.