On Saturday, hundreds of protesters marked the six-month anniversary of Occupy Wall Street by attempting to retake Zuccotti Park. By the end of the night, 73 had been arrested and the park forcefully cleared. In scenes that recalled the early days of the movement last fall, citizen journalists captured the New York City Police Department roughing up dozens of apparently peaceful activists. One of them, Craig Judelman, posted a bloody photo of himself on Facebook with the caption, “just got punched in the face like 5 times by NYPD.” Journalists J.A. Myerson and Ryan Devereaux have good summaries of other alleged brutality, including officers throwing punches, “rubbing” a boot on someone’s head, dragging a woman by the hair, and breaking a guy’s thumb. Many other incidents were caught on tape. Here are some of the most disturbing: