Not completely sure. The withered red fruit of holly may be caused by many reasons, such as water shortage, fertilizer shortage, pests and diseases, soil problems and so on. If the trunk is still hard and the bark is not softened or rotted, then the tree may not be dead, and appropriate maintenance measures can be tried to improve its growth conditions.

If the trunk has softened or rotted, or there are obvious pests or other damage on the bark, then the tree may have died. But it needs further examination and diagnosis to make a definite diagnosis. It is best to invite a professional gardener or tree doctor to check and evaluate the state of this tree.