Here is the story:

http://www.dallasnews.com/sharedcontent/dws/dn/latestnews/stories/062709dnmetdiver.bef91d9.html

OSHA is investigating.

It is hard to believe it is cost effective to hire someone to retrieve balls.  Then again, I guess you can’t leave them in there forever.  Sad story.

This just goes to show that no profession is immune to injury/death.