National Transportation Safety Board investigators are working to determine what caused a charter bus carrying a high school marching band to overturn while on a New York interstate Thursday, leaving two adults dead and several students injured. The crashed bus was carrying members of Long Island's Farmingdale High School marching band to a music camp in Pennsylvania. Errol Barnett has more. #news #buscrash #newyork "CBS Evening News with Norah O'Donnell" delivers the latest news and original reporting, and goes beyond the headlines with context and depth. Watch "CBS Evening News" every weekday night at 6:30 p.m. ET on the CBS Television Network and at 12 a.m. ET on the CBS News app. Subscribe to the "CBS Evening News" YouTube channel: bit.ly/1S7Dhik Watch full episodes of "CBS Evening News": cbsn.ws/23XekKA Follow "CBS Evening News" on Instagram: bit.ly/1T8icTO Like "CBS Evening News" on Facebook: on.fb.me/1KxYobb Follow "CBS Evening News" on Twitte...