Questions and Answers... Still bugged?

I have been interested in this game since the first trailers years ago… I held off in buying because of the bugs I read about. I finally got it this year and absolutely love it. Then I got to the pestilence and questions and answers quest line. At first I couldn’t find the bailiff so I just went off and and ventured for a while. Returning the the quest the captive had died. I dug up his corpse and retrieved the letter. At this pin the quest prompts are still telling me to loot the corpse. I talked to Radzig and cannot progress the quest any further. Any help would be appreciated.