First, he was criticized for owning shares of Diebold, the electronic voting machine company, which has benefitted financially from decisions Blackwell's office has made.
A couple days later, it came out that Blackwell owns stock in the world's leading maker of slot machines---even as Ohio citizens are set to vote in November whether to permit slots at the state's horse-racing tracks.
But here's what's really interesting: Blackwell lost money on the Diebold stock. And he opposes the slots initiative. Kenneth, Kenneth, Kenneth---don't you know that the first rule of shady, questionable, probably-inappropriate business deals is that you should benefit from them??
(On the other hand, the fact that he didn't may turn out to be a saving grace.)