Answer
Seth Rich, a former Democratic National Committee staffer, was murdered in Washington, D.C. in 2016, and conspiracy theories surrounding his death spread, with Dotcom being one of the promulgators. Rich was rumored to have been the source of leaked DNC emails published by WikiLeaks during the 2016 US presidential election, but no evidence supports these claims. These unfounded theories have been repeatedly debunked by law enforcement and Rich's family.