According to sources such as Wiki - the antifa movement has existed in different eras and incarnations, dating back to Antifaschistische Akiton (then it was the Stalinist Communist Party of Germany).

Mark Bray is the author of 'Antifa: The Anti-Fascist Handbook' (Bray was an organizer for Occupy Wall Street) - but he does not claim leadership.

Rather - the 'structured movement' is organized into small, local cells that coordinate across the US.

Rose City Antifa (the name they have given themselves) is one of the oldest groups, founded in Portland Oregon in 2007.

At the end of the day - it doesn't really matter who wants to play 'simon says' as the leader of a loosely structured "organization". What matter is who funds it - thus enabling its 'acts'. And THAT is easily researched...even before the movie Jerry McGuire we were familiar with the phrase "Show Me The Money".