According to the article, his test results were NEGATIVE. Apparently, he refused to accept those results, until antigen tests also came back negative.
That tells us he wasn't infected with covid-19 but it doesn't tell us if he was stricken with something else. That was what my question was about. Otherwise, it was nothing but a total staged sham and it should be brought to the attention of the state medical board in whatever state he is licensed.