recovered human remains. and tonight here, you will see the images of the wreckage. pieces of the sub lifted from the ocean floor. the growing air quality concern tonight across the u.s., from the canadian wildfires. 20 states now. major cities including chicago, detroit, pittsburgh. pennsylvania ordering a code red. and the warning in new york. so, how bad and how long does this last this time? alex perez in chicago. we ve learned tonight an amtrak train with hundreds of passengers has collided with a truck. at least several cars derailing. reports of multiple injuries. just outside dallas, authorities now releasing the chilling police body cam video from the deadly outdoor mall shooting and what it shows. in new york city, the former marine charged in the subway chokehold death, daniel penny, pleading not guilty today in court. and what court records now reveal about the scene on that new york train. tonight, the young new york city lawyer brought back to boston to face rap
last hour former u.s. marine daniel penny pleaded not guilty to charges related to the subway chokehold death of a homeless street performer jordan neely. he s charged with second degree manslaughter and criminal negligent homicide. he s argued he was acting in self-dense saying neely was making threats to him and other passengers. joining us now is nbc s emilie ikeda. how did today go and what is next for the case? reporter: well, lindsey, we heard from the lawyers, they took to a throng of reporters and the microphone shortly after the arraignment, the arraignment lasting a matter of minutes, four minutes or so. daniel penny, the marine veteran, walked into the courtroom looking straight ahead, according to the producer in the room. he firmly said the words not guilty. he faces as you mentioned the two charges, one of criminally negligent homicide and second degree manslaughter, which if convicted in the trial as this case moves forward, he could face up to 19 years in prison.