outside, yelling in front of cars, 19 years of age, name is tony robinson. apparently tony hit one of his friends. no weapons seen. >> police say robinson then ran into a home across the street. officer kenny followed heard a disturbance inside forced his way in and police say was attacked by the suspect and opened fire. >> shots fired. shots fired. >> 12-47, copy. shots fired. >> protesters have filled the streets of wisconsin every day since that shooting. madison's police chief who has met with robinson's family in person says his officers are trained to use the minimal amount of force necessary. >> we are trained to use that minimum amount of nondeadly force, which is required. so the fact that deadly force was used or employed in this instance must mean that there has to be other factors present such that it would rise to that level or that threshold. >> nbc's ron allen has more now from madison, wisconsin. ron. >> reporter: good afternoon, thomas. emotions are very raw out here. there's a concern about more