NEW : Police hold Nikos Michaloliakos after court appearance . Michaloliakos , the Golden Dawn party leader , is accused of forming a criminal gang . He denies it and says he's innocent. They were arrested in a police crackdown after the killing of an anti-fascist musician .
NEW : Police hold Nikos Michaloliakos after court appearance . Michaloliakos , the Golden Dawn party leader , is accused of forming a criminal gang . Three other Golden Dawn lawmakers are free pending trial ; one remains in custody . They were arrested in a police crackdown after the killing of an anti-fascist musician .