Sorry to bring this up again, but . . .

High school game, NCAA rules. Pass thrown into end zone, where receiver secures the ball in his hands with his arms extended. He takes one step, then gets blasted by the covering DB, knocking the ball loose. I won't muddy the water with what our call was, but in postgame discussion, it was a split decision among the crew as to whether it was a catch or an incompletion. What do you think, and why? Thanks,