So basically, on my first character, I decided to just go berserk and kill absolutely everybody that I could. I succeeded. Every city was a damn ghost town. However, I remember one specific time while visiting Whiterun, I headed into the Companions HQ, to see if there was a Daedra Heart there (keep in mind that after I completed the side quest, I killed all of the companions. I remember killing Farkus by decapitating him and killing some other dude by burning him.) So, I headed downstairs and after I head into the hall, Farkus and the other guy I killed are right there. In front of me, with no head and a burnt body. I screamed. Loud as shit.