6s Lipo Pack - bad cell question

I have a Turnigy 5000mah 6s I use in my electric Losi Aftershock. After a run last night, the battery itself was up to 134 degrees and the outer cells puffed out.

I let it cool down and after about an hour, the pack was back down to normal size. This morning, I hooked it up to my Accucel-6 charger to set the cells to storage. The charger only identified 5 cells, so I decided to not try to charge anything. I checked for loose wires and bad solder but found nothing.

My question is, is there a good way to identify which cell is bad and remove it, or should I just chuck the whole lipo pack?