trapped for more than a week and the new winter threats we re tracking. protesters and police clashing in atlanta. nearly two dozen now facing domestic terror charges. the ntsb investigating after another norfolk southern train derails in ohio. our one-on-one with transportation secretary pete buttigieg. we asked should the company be forced to pause operations? jurors in the alex murdaugh double murder trial breaking their silence. what they say about his decision to take the stand. and he was the last original member of a legendary rock band. remembering guitarist gary rossington. announcer: this is nbc nightly news with lester holt. good evening, everyone. and thank you for joining us. chilling images tonight appear to show four americans kidnapped at gunpoint moments after crossing from texas into mexico on friday. tonight the fbi asking for the public s help, offering a $50,000 reward to help locate the americans who were attacked by armed men after crossin
rail company and the federal government. jesse kirsch reports. reporter: tonight the ntsb is investigating another norfolk southern crash in ohio, the company s fourth derailment in this state in less than five months. this springfield train wreck caught on camera. the company says 28 cars went off the track this weekend with two crew members on board. no injuries or public health threats were reported. 212 rail cars, some of which were tank cars transporting hazardous materials. reporter: norfolk southern says the cars with hazardous materials were not among those that derailed. today the company promising more investment in sensors that detect overheated wheel bearings. even one derailment is too many. and yet the average in recent years has been several every single day. reporter: transportation secretary pete buttigieg says railroad standards need to change. but it s really the entire industry that has been pushing hard to water down or delay safety regulations. is it