联邦调查人员后来说事发几秒钟前，客运列车上的工程师正用手机发着短信。
Federal investigators later said the engineer on the commuter train was sending.
救援调查人员后来在 车尾箱找到一具尸体，脖子缠着布料纤维的残余，脸上贴了胶布。
In the trunk, authorities found a body with white fabric around its neck and duct tape across the face.
他后来成为了一名民航飞行员，萨伦·伯格协助编制航空安全课程，出任坠机现场的调查人员。
As an airline pilot, he helped develop an air-safety course and served as an investigator at crash sites.
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