Seth Rich? He wasn’t a government official, which is what anonymous is saying is the leak on the pedo ring.
Rich worked for the DNC. He may have been the source of the DNC leaks, though, since Wikileaks put out a reward for info leading to his killers.
According to his Wikipedia entry, Seth Rich was "Voter Expansion Data Director" for the DNC at the time of his death. Elsewhere, Newsweek described him as a "computer-voting specialist" and "Director of Voter Expansion Data." He was shot to death on his way home in the wee hours of July 10th, 2016.
References:
Seth Rich entry @ Wikipedia8/20/2016 Newsweek Article
As his role was voting-related, I would speculate that he was an honest man, uncomfortable at being asked/ordered to become involved with imminent voter fraud. That made him a potential whistle blower (with regard to voter fraud). He was also slated to be interviewed by the FBI over the HRC emails case. I leave it to the reader to decide if that made him a candidate for "Arkancide" or not.
To me, it seems doubtful he knew anything about such (so far unsubstantiated) sexual-deviancy crimes. On the other hand, God only knows what he might've heard around the office. NOTHING in this election cycle would surprise me at this point!