That isn't evidence.
Find some factual evidence that Seth Rich ever touched the e-mails or had access to them.
Best evidence I think that its clearly the Russian GRU that gave it to Wikileaks is Assange trying to blame it on Seth Rich. Because of what he's done to Seth Rich's family I'm quite happy to see him rotting in a jail cell. In an ideal world, everyone pushing that story should be in there with him.