Is Wikileaks announcement that the recently murdered DNC staff member was the source of the leaks, not Russian hackers, credible? I don't know, and in anycase I consider the source of the leaks to be much less important than the contents of the leaks.
When we watch a good magician, they entertain us by using misdirection. Unfortunately, when the deep state and the media they control use misdirection it is not fun or entertaining, it is about getting the population to go along with policies against the public's interests, against the interests of peace and prosperity, etc.