Triggerfish a Natural Predator?

I interviewed a lobster fisherman from Spanish Wells named Mark who had extensive knowledge of the lionfish, from the day he saw his first one, to the lionfish population reaching it's plateau. I will soon post an interview with him on youtube. One very interesting fact that he gave was that there was an area in the ocean where he did not see any lionfish. This area was heavily populated by triggerfish. I also read in aquarium sites that trigger fish cannot occupy the same space as lionfish in an aquarium, they break off their spines. Also when I dive and I see ocean talleys (member of the triggerfish family) in an area I also notice that there are no lionfish. Could it be that triggerfish are going to save our oceans from the lionfish? If so there should be halt on killing triggerfish.