Violence at the corner of 4th and Monroe on April 5th

While walking along 5th Ave on April 5th at around 6 pm, neighborhood residents saw a group of 10-15 teenagers and several cars in a parking lot at the corner of 4th & Monroe. It looked like one person was pinned to the ground while the others were beating him/her up. As soon as they realized someone was there, they all jumped into their cars and drove off down 4th Ave. The police were called, but didn't have enough information to take further action.