Interesting news discovered belatedly, and I'm not surprised. I had an encounter with his group in 1996. The way he led the meeting was domineering verging on bullying, as well as homophobic. And he made no apologies for having been running mate to Lyndon LaRouche, stacks of whose cult literature stood near the entrance of the "community center" where the meeting took place.
A woman who also attended -- perhaps the only other person there who wasn't in the cult -- told me afterward that she didn't have the right to criticize him because of his history with the Civil Rights movement (he was one of MLK's "field generals"). I said if she thought he was wrong, it was not only her right but her duty to say so. But doubtless that background did deter a lot of scrutiny he'd otherwise have gotten.