Three people now in custody over the murder of Dutch volunteer soccer official . Two year - olds , a 17-year - old as well as a 50-year - old were arrested on Sunday . Dutch police appeal for anyone with photos or video recordings of the attack to come forward . Richard Nieuwenhuizen , 41 , died after being beaten following an amateur match .
Eight people now in custody over the death of Dutch volunteer soccer official . Two 16-year-olds , a 17-year-old as well as a 50-year-old man arrested on Tuesday . Dutch police appeal for anyone with photos or video recordings of the attack to come forward . Richard Nieuwenhuizen , 41 , died after being beaten following an amateur match .