The former US soldier charged with raping a young Iraqi woman and killing her and three family members has pleaded not guilty. Former private Steven Green appeared in a Kentucky courtroom Thursday. Green is accused of raping and murdering Abeer Qasim Hamza, and then burning her body in an attempt to hide the crime. Hamza may have been as young as fifteen years old. Green is also accused of murdering Hamza’s mother, Fakhriya Taha Muhsen; her father, Kasim Hamza Rasheed; and her five-year old sister Hadel. Four other soldiers are also under investigation. New details continue to emerge about the case. Family cousin Abu Firas Janabi told the Los Angeles Times he was the first person to enter the house after the attack. Janabi says the father’s head had been “smashed into pieces” and the young sister’s arm visibly broken. He said Abeer Qasim Hamza lay naked and burned, her head smashed in “by a concrete block or a piece of iron.” And according to Janabi, the family’s two young sons returned from school to see their home on fire and their family members burning inside. Janabi also says that three days before the attack, Abeer Qasim Hamza’s mother had complained to him that US soldiers were constantly searching her house and that she believed her daughter was the target. Janabi says he suggested that the family move into a vacant home beside his but the parents insisted they’d be safe. Janabi says the family’s two sons are now with their uncle in a nearby village. Meanwhile, the military is investigating whether the recent abduction and beheading of two US troops in a nearby town is linked to the case. The dead Privates — Kristian Menchaca and Thomas Tucker — were from the same military unit as Steven Green and the four other soldiers. Investigators now believe the two soldiers may have been slain as an act of revenge for the rape and killings.