Had to be there or see the video but interesting that it wasn't called right away:
Carroll takes final game in thrilling fashion to advance Corpus Christi Caller-Times
Apparently he was windmilling the runner home while looking at the ball and other runners. His runner runs into him and gets up and still makes it home. F5 says something about his throw being obstructed so what was called may not be what the paper is reporting.
I'll look for video.