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What you're going through, okay? and just, you know, it's a death investigation, we have to do this, okay? >> reporter: happy to help, he said. whatever would get him back home to comfort his daughters as quickly as possible. >> this is gonna kill them. they were all so close. >> reporter: chris told investigators what happened, as courtney slept he and christi were in the spa bathing. >> she got out, went in, went to the bathroom, got some more coffee, tried to wake up courtney. courtney didn't wake up. apparently she came back out. >> reporter: as christi returned to the spa, said chris, the...

>> i can't even start to imagine what you're going through, okay? and just, you know, it's a death investigation, we have to do this, okay? >> reporter: happy to help, he said. whatever would get him back home to comfort his daughters as quickly as possible. >> this is gonna kill them. they were all so close. >> reporter: chris told investigators what happened, as courtney slept he and christi were in the spa bathing. >> she got out, went in, went to the bathroom, got some more coffee, tried to wake up courtney. courtney didn't wake up. apparently she came back out. >> reporter: as christi ret...

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 s...