Erden: following is my thoughts based on 29 years of climbing. I hope you look at this factor as no one has mentioned it and in my view the most likely factor of this accident.
It was the rock.
The rock moved.
It was not the rope. There was plenty of rope out for a dymanic belay.
It was not the pro. The pro was good.
It was the rock.
It moved.
This is my belief.
I have several things to say. First: Erden, it sounds like to me that you have done a fantastic job, before during and after. You, and the others who are seeking answers must be providing some comfort to Göran friends and relatives who undoubtedly are feeling beyond terrible over this event. I also want to take a moment to recognise Paul for helping with the process and not simply bootying the pro. Good job to all of you guys looking for answers. I know if there was anything any of us could do for the friends and relatives so far away to ease their pain - we would do it.
If I may take a momemt to clarify how many pieces pulled: Göran pulled out 3 of the 4 cams he had in, a #3 red TCU, a #1 red Camalot, and a #3 blue Camalot. 2nd time you add a #2 yellow Camalot to the 3 listed above, it was the second piece he fell onto, the one "where the carabiner broke, that did its job and stayed in the crack." There is a lot of focus on the broken carabiner, but if I understand this, 1 cam pulled out, then the carabiner broke, than 2 MORE cams pulled out????? I find it suspect that even 2 cams could pull, let alone 3. I am surprised no one else questions this.
If there is anybody out there who has seen somebody fall and even rip out 2 cams: let that person step forward. When I was guiding, I once lowered off 2 outward bound instructors who had fallen a full ropelength (and died) onto 1 single #2 ridged stem friend that was partially seated in a shallow, rotten seam. I could not see what was holding it in when myself and another guide climbed above them, and we expected it to pop at anytime. Their total weight was @ 300 lbs and they fell approx 150 feet of vertical fatally striking 1 ledge @ 100 foot down. The strength of camming devices is very high. After backing it up, we used that piece to lower them off. Cams also put an incredible force outwards as they are pulled out. I wonder if the column may have actually moved with the sideway forces the cams undoubedly exerted on it. Perhaps some of the engineering inclined up your way could go out to air guitar and check this out. There could be a couple of ways to figure this out, but duplicating the exact force by using a cam would be difficult. One easy way would be to set up a toprope and nail up it. If you can reach below and pull out the last pin that you had smacked in with your fingers: voila, it's an expanding "flake" or column. I normally don't advocate using pitons: but if it is done only once, and can perhaps save another life.....I wholeheartedly encourage it. I don't agree with Mr Chips that we should all just forget persuing the reasons why this may have happened. If the answer is a rational one and it prevents anothers death then we need more speculation, not less. I do not believe that Göran put in 3 or 4 poorly placed cams. It is not believable. I have seen them hold too many times. I could understand 1 cam pulling out, that would be a bad placement. 2, ahhh, maybe, but most likely not possible on a straight up vertical nice to pro crack. 3???? Nahhh. Nope. I would not think bad pro in this instance, I would be thinking moving rock more likely.
Lastly: awhile back I was involved in a similar accident at Smith Rocks. We were the only group other than a group of young Canadiens eating at Rudy's mexican place that AM. They were real nice folks, light hearted and we talked with them some over breakfast. No one imagined that within a few hours the young man would auger in from 70 feet up pulling 4 of the 7 nuts he had in (we were on the next route over, but almost 150 feet straight above them at the time). He had followed the route the previous day. On lead, he had gotten tired and fallen about 6 feet onto a piece that held but later pulled. In this tired state, he climbed straight up- off route- instead of to the right where he would have been on route and could have put in more pro. The crack got thin and virtually disappeared as he went up. He fell. The metal clanged and it wounded like a sack of potatoes had smacked hard from up high. We immediatly rapped off to assist.
The sounds of his girlfriend screaming and his friends sobbing, and the smell of his breath while unsuccessfully giving mouth to mouth while my friend tried CPR have not left me to this day. Nor will they I suspect. It's been almost 16 years now.
High regards Erden:
Bill