Why Didn't Mueller Investigate Seth Rich?

"The idea that the DNC email disclosures were produced by a hack - not a leak - makes less and less sense...After bungling every last aspect of Russia-gate since the day the pseudo-scandal broke, the corporate press is now seizing on the Mueller report to shut down debate on one of the key questions still outstanding from the 2016 presidential election: the murder of Democratic National Committee staffer Seth Rich."