"I think I saw that guy on the news a few days ago. Personally I thought he seemed believable enough. He didn't appear to have any reason to lie about it."
I saw him too. He and another guy describing what happened, sounded credible to me. They were talking about the big boom, and then how the water started rising much faster. I read somewhere that the barge sunk near the breach.
The older man said he was standing on his roof and saw the barge hit the levee.