Chadrel Rinpoche, a high-ranking Gelugpa monk, was arrested along with Gedhun Choekyi Nyima. Chadrel Rinpoche played a key role in the search for the 11th Panchen Lama and was subsequently imprisoned by the Chinese government.
Unveiling the Mysteries of Gedhun Choekyi Nyima: The Enigmatic 11th Panchen Lama Revealed