I'm pretty sure I wouldn't get Turnley's photos if I were in the same situation. Being there is a big part of it, but it's not the whole story.
Could I learn to? I doubt it. I don't react quickly, it's not how I operate. I have to work the photo. Often I have to shoot a thing over and over. On those rare times whenever I do point, shoot, and nail it, it's almost always because I've thought it over thoroughly in advance and I know what I'm doing.
See, react, click? It's a skill and maybe an inborn talent not all of us possess.
this might be different you should give yourself more credit. Envision this, local fire department call house burning down. You drive by as they start hooking up the hoses the fire is blazing. You get out your camera clearly thinking of the shots available here. A fireman carries a indistinguishable small figure out in his arms while another is soaking the ground around him keeping it doused, you miss that shot it happens to quick. You don't see what happens to the figure as it is brought around to the other side of the truck toward a waiting ambulance that just came on seen. You have now been there for about twenty minutes snapping photos, the house flames are just beginning to be brought under control. You notice a fireman sitting on the curb kind of zoned out. snap a photo of him. It isn't a rush shot, he looks depleted and isn't going far. You find out later he was the one carrying out the indistinguishable figure and it was a dead ten year old girl.
No rush or foresight needed. The work up for 911 wasn't a moment, but a serious of moments over a long period, what seemed like perhaps a never ending period I was glued to the tv that day and it went on, and on, and on you kind of wished it would be over it was so shockingly horrific..(and I later went online for recoverable pics from there from the "off market " sites and was lucky enough to get downloads from a photographer on site..which is what you didn't see on tv and REALLY horrific) Now the ones that caught the jumpers in a split second before they hit the ground. Now that was timing. Missed and got them after they hit. Just flat out gruesome and undeniably real. But then again since there was many a jumper they at more than one chance at it. Horrific as it was.
The thousand yard stare, I think that would have been the shot you take after you missed the real horrifying ones or in between them. And there was probably more than one person to choose from with that stare given the on going events. Just my take on it though really. There were photos from non photographers with cheap cameras that were down right freakn astounding just because of the content. Entirely situational.