I have taken following passage from a newspaper. Please, explain meaning of it.
BSF personnel in Gool shot a 32-year-old teacher of political science in the head even as he was trying to reason with the agitated mob, the superintendent of police (SP) of Ramban said a day after the firing that killed four people, injured over 15, and triggered massive protests across Kashmir.
Please, explain meaning of the section marked in bold with the context of entire passage.
Thanks in advance.