walk but a walk across niagara falls on a really, really skinny wire? good gracious. you betcha. got that story and a whole lot more, coming up this hour on cnn. oh, that s a beautiful shot, isn t it? hopefully he ll do it when there s broad daylight. do you think he s awake right now doing one of these? calm the jitters. especially because he will be tethered and he s not used to being tethered. the advice might be lay off the caffeine this morning. good advice. welcome to early start, nice to have you with us, i m ashleigh banfield. and i m zoraida sambolin, bringing you the news from a to z, 5:00 a.m. here in the east. let s get started. this is cnn breaking news. we begin with this this morning. bran new details on the two american men arrested in japan after a nicki minaj concert. police are holding one of them, a 19-year-old on suspicion of murder in the death of a 21-year-old irish exchange student, a woman who disappeared after that conce