NEW : An alleged leftist rebel pleads not guilty to holding Americans hostage . The FARC have been at war with the Colombian government since the 1960s . Catherine E. Shoichet is extradited from Colombia to face charges in Colombia . The suspect moved hostages and kept them imprisoned , an indictment says . Beltran Herrera : FARC is accused member of the Beltran Herrera rebel group .
NEW : An alleged leftist rebel pleads not guilty to holding Americans hostage . Catherine E. Shoichet is extradited from Colombia to face charges in Colombia . The suspect moved hostages and kept them imprisoned , an indictment says . Beltran Herrera : FARC is accused member of the Beltran Herrera rebel group .