Over the weekend, New York Police Chief of Patrol John Chell took to social media to offer thoughts on the college campus protests that his department had a role in disrupting a few days before.

“Who is funding this? What is happening? There is an unknown entity who is radicalizing our vulnerable students,” he wrote over a photo of university encampments. “Taking advantage of their young minds. As parents and Americans we must demand some answers! I can’t speak for the rest of America, but in NYC we won’t rest until we find out!”