Yes. And he was an organizer and negotiator at the student protests where people got attacked.

https://www.columbiaspectator.com/city-news/2024/04/24/i-am-...

https://www.theverge.com/2024/4/30/24145737/columbia-suspend...

https://www.bbc.co.uk/news/world-us-canada-68923528

https://www.nbcnews.com/news/us-news/columbia-stalemate-cont...

https://nypost.com/2024/04/26/us-news/the-extremist-student-...

And if you want to have a fight about technicalities, you're both wrong. He didn't describe himself as either pro-Hamas or pro-Palestinian. He described the protests as anti-Israel ...

As anti-Israel's existence, to be exact, not anti-Israel's actions in Gaza or anywhere else.