Man that's horrible...
What's almost eerie about it all is that my instructor and I were out practicing VOR holds today and nearly had a mid-air ourselves.
I was under the hood and he was my safety pilot. We were coming up on the VOR when a Tulsa Approach controller gave us the traffic warning. Before I could even say, "65748, looking for traffic", my instructor yells #### and pulls us back into a steep climb. We missed the other Cessna by a mere 20 feet or so. If it wasn't for that controller I wouldn't be typing this right now. I have the UPMOST respect for ATC personnel.
I find it interesting that there is only an average of 16 mid-airs per year. If that's the case there must sure be a lot of REAL close calls.
My condolences go out to those involved.