Really hard to make a diagnosis based on those pictures, there are several fungal diseases that cause similar symptoms, but if you have other similar spruces nearby it would be good to remove it as soon as possible.
If your aunt wants to keep it until it's a complete eyesore (it's halfway there), it would be advisable to periodically remove all fallen needles from underneath and burn them to avoid spreading the contagion even further.
O boy! I raked up all the cones and needles and tossed them in the woods amongst the other trees there. I'm in western Pa and its been in the lower 30s lately, can the disease spread this time of year at this temperature?
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