Are conspiracy theories necessarily fake news? When the mainstream media has no explanation or no evidence to support a speculative explanation, is it fake news for the MSM to broadcast its speculation as truth.

Seth Rich was a DNC staffer, very much pro- Bernie, very much into IT and systems. He was murdered in Washington DC by persons unknown. He could have been behind the hack of DNC emails. Until a murderer is caught, it is speculation either way. Fake news is declaring his murder was unrelated to the hack, as was done in this story.