Please answer in a paragraph! How would you assess his account of bloody sunday for reliability?

Based on Global, if you knew that Father Gapon was an agent of the Russian police. whose job was to organize the workers and promote their loyalty to the Tsar, that he was so distraught by the events of Bloody Sunday that he left Russia, and was eventually killed by the Social Revolutionaries who became convinced he was spying on them to the Tsars agents. How would you assess his account of bloody sunday for reliability? Thank you