Concerns over allegations of excessive police force on February 20 when a Quakertown high school student walkout protesting ICE turned violent, including the local chief of police putting a girl in a chokehold, have local parents and citizens still looking for answers. Upper Bucks United, a grassroots organization serving Palisades, Pennridge and Quakertown school districts, is calling on concerned residents and members to attend a Quakertown b…