new details on how authorities tracked down the suspected killer of those four college students.ery reer sus injured. the avengers star air lifted after a snow plowing accident. tonight, an update on his condition. and remembering barbara walters. tributes continue for the pioneering tv journalist who opened the door for generations of young women. this is the cbs evening news with norah o donnell, reporting from the nation s capital. brown: good evening, and thank you for joining us. i m james brown in for norah. tonight, as we begin the broadcast on this first monday of the new year, thousands of airline passengers are facing more delays after an air traffic control computer glitch. we are going to have an update on that in just a moment. plus,s new details about the man accused of attacking three new york city police officers near times square on nev, charged today with attempted murder. authorities are investigating if the suspect was motivated by islamic extremis