I believe the first response was to cover any potential leak by tainting it with bogus Russian hacking claims.
I believe these elements confirmed that the information removed from the DNC server was provided to a WikiLeaks associate.
I believe that on July 5th, 2016 following the Comey press conference officially clearing hrcs path to the nomination that it was determined....
Dmitry Alperovitch
Matthew Steele Laird
Adam Parkhomenko
Seth Bringman
Christopher Guerrero
Kristin Oland
and Mark Mueller
Pro tip: don't hide the truth so it looks like you're covering up EVERYTHING, then try and claim conspiracy theory