It is an image of the Democratic Poll Book so it is safe to say that that it does show that these individuals voted in the Democrat primary on 6/3. That's what the book is for, after all. At this point, it doesn't really matter who they voted for on 6/24; their vote was illegally cast. Now, they may have cast that illegal vote for McDaniel but if you're going to go to the trouble of voting illegally is it likely that you vote for the good guy?
I understand that it’s an indication they probably voted Dem on June 3rd, but it’s not hard and fast proof that they did. Although now someone says it actually is proof, which if true would change the situation completely.