On the second anniversary of the attack on Israel, a peaceful scene on Boston Common took a violent turn, leaving some officers hurt after a chaotic clash between police and pro-Palestinian protesters.

Six of the 13 people arrested were arraigned in court Wednesday afternoon with the rest set to appear on Thursday.

Roder Atwood, who was wearing a face covering in court, entered a not guilty plea. The Tufts University senior who majors in cognitive science, and works as a part-time tutor was handcuffed and taken into custody by court officers on charges of punching a Boston police officer in the face.

Laith Hintzman, 19, of Boston, Prahlad Iyengar, 25, of Boston, Benjamin Andre Choucroun, 20, of Medford, Owen Woodcock, 26, of Boston, and Amun Prophet, 25, of Allston, all pleaded not guil

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