Julian Assange asks a very interesting question

I don't see the data about party affiliation.

Me neither: I looked at the Mother Jones data, and it doesn't mention political affiliation at all.

As satisfying as it might be emotional to tar the Democrats with responsible for these incidents, I have not seen any convincing evidence that they are more likely to commit such acts than are Republicans, Greens, Libertarians, or any other political group. Posts like this do not reflect well upon us.