In the video, which was published by the Florida Today newspaper Thursday, the teens can be heard laughing at Dunn as he splashes futilely in the water and screams for help. "Get out the water, you gonna die," yells one, while another yells, "ain’t nobody fixing to help you, you dumb (expletive)." As Dunn disappears under the water, one of the teens says, "Oh, he just died."