CNN iReport

The night began with a crowd assembled in Schenley Plaza sitting on the grass.  Police with un-muzzled attack dogs showed up.

Hundreds of police ringed the nonviolent group in the plaza.

I was forced across the street.  Cop tells crowd we're okay, will be given warning when chemicals will be used on people across the street, to walk up Forbes Avenue if we get hit with gas.  Less than a minute later riot police march across the intersection and rush the crowd, pushing us past the Cathedral of Learning to Fifth Avenue.

Police advanced us up to the William Pitt Union, and then rushed us into the Schenley Quad.  We were forced back up to Litchfield Towers -- and found our way blocked by cops at the entrance to the dorm.

I raised my hands and said "PLEASE, I'M TRYING TO GET TO MY ROOM," and the cops let me past.  Minutes later they were turning people away from the dorm and sending them back into the streets, where they were met with more police and more gas and rubber bullets.

Toward the end of this video you can see the aftermath of police teargassing the entrance of the Litchfield Towers because a student was trying to help up a student who had taken a rubber bullet to the face.