I've had the same problem with my podocarpus when i bought it. It seems like the company i bought my tree from did not provide the optimal care so some leafs were very dry. What you can try is to give it a good bath, take the pot and sink it in a water bucket (do not put the whole tree in water, only few mm above soil level) for about 5 minutes. Usually a podocarpus needs to be watered once every 2-3 days, maybe even once a day during summer time, it all depends on where you live. I am not sure if the tree is dead yet but it is worth trying everything you can. Keep us updated!