As far as I know the photo hasn't been put out to "prove" anything -- it just accompanied an AP article about the story.
There had been some discussion here of the murkiness, I noted that the photo helped me visualize the situation. I had thought it was brown, obviously-dirty water -- this was more or less "normal" looking yet also seems to have very low visibility. From my experiences at the pool, it's unusual to be able to see so little of the person underwater. Reflections are one thing. Here's a random pic I found on the internet, similar angle as Marie Joseph + the little girl she's holding:
You can see WAY more of their bodies under the water.
At any rate the opacity of the water is not really in question:
Quote:An initial investigation showed the water in the pool was murky from the time the pool opened for the season last Saturday. Visibility tests conducted Wednesday revealed a diver couldn't be seen at a depth of 3 1/2 to 4 feet below the surface of the water.
I'm not sure how deep the one we go to is at the deep end, definitely at least 12 feet -- but kids are always losing their swimming goggles there, and people are able to spot them (resting on the bottom) when standing at the edge of the pool.