NEW : Police hold Nikos hostage after court appearance . He gave a deposition to a Greek court on Wednesday that lasted until the early hours of Thursday morning in Athens , it said . Michaloliakos , the Golden Dawn party leader , is accused of forming a criminal organization . Three other Golden Dawn members are free pending trial ; one remains in prison . They were arrested in a police crackdown after the killing of an anti - fascist musician .
NEW : Police hold Nikos hostage after court appearance . Michaloliakos , the Golden Dawn party leader , is accused of forming a criminal organization . Three other Golden Dawn members are free pending trial ; one remains in prison . They were arrested in a police crackdown after the killing of an anti - fascist musician .