shouldn't it have looked dead long before now though? i dug it up about 3 months ago
Thats the problem with pines ( and all conifers for that matter): it takes ages to see something is wrong and when you do its usually too late!!.
Its a pitty this one died, had some potential...
So: before you go and collect and kill another one, take the time to learn some horticultural basics ( how and when to collect /repot plants, which ones to bareroot or not, aftercare,...) A free lesson: never dig up a plant and put wire around it at the same time. Dig up, let it recover for a ( few) year(s), then wire