for all of us have a great day. we ll see you at ii. tonight, several developing stories as we come on the air. the american city paralyzed, subways, elevators, plunging into darkness. traffic lights out. workers trapped. hospitals on backup generators. and the window washers stranded. authorities call it a, quote, catastrophic failure. the fbi moves in tonight. the teacher accused of abducting his student, a 15-year-old girl, he s now in federal custody. our team with new details from inside the cabin. the terror attack. we have new video captured in the middle of the attack. and the americans who were right there on the champs elysees. the new video emerging tonight. the retired librarian accidentally shot and killed during a police training exercise. the new study on diet soda, stroke, and dementia. what researchers say about your risk. and breaking news on the case of the highway serial