Gail Blauer posted some info she got from some rangers over on rc.com:
Sunday, April 29th
Apparently a group of climbers set up a top rope on the tree above Black Fly. According to the rangers, the rigging failed (6 or so slings somehow attached and wrapped around the tree). Apparently one climber was lowered to the ground, the second climber ascended and when she sat back the rigging failed and she hit the deck.
The rangers were very concerned about her well being as she was altered, very pale and had some type leg injury.
Thoughts and prayers to the injured climber and those who set up the rigging. I hope they all recover quickly.
If it's just a leg injury that sounds like good news.