David Van Horn went to place flowers at a makeshift memorial for Allison Hart — a 5-year-old girl who was hit and killed in a crosswalk while riding her bike — when he captured an infuriating scene on video. Support our journalism.... The other car, meanwhile, slows down but does not completely stop before also going over those white painted stripes. Story continues below advertisement The video lasts only nine seconds, but it’s enough to show the danger pedestrians and bicyclists too often fac