CNN Erin Burnett OutFront May 14, 2015 23:02:00
Bostian agreed to meet with them for an interview. we have learned a lot about him today, including our interview with one of his close friends and former coworkers. we'll begin with jason carroll out front tonight in philadelphia. you're learning a lot more about the investigation at this hour. >> reporter: well the ntsb says that the train does not have a mechanical history of unintended acceleration. that's why it's very important for investigator to speak with this engineer and find out why the train accelerated. now it appears they'll get their chance. the train's engineer, 32-year-old br...
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