A confidential source handed to Rustavi -2 one more part of the FBI conclusion on the case Zurab Zhvania and Raul Usupov""s case.According to the report, less than four days after the incident, a team from HMRU arrived on the scene with an overwhelming amount of pertinent scientific equipment and appropriate scientific and hazardous materials personnel. HMRU personnel re-created the scene and conducted a four-hour test to measure the air quality in the apartment under conditions that approximated as closely as possible those of the morning the bodies were discovered. Nothing was observed during the testing or in the analysis of the test data by the Laboratory Division to contradict the preliminary finding of the Georgian government that the Prime Minister and Deputy Governor died of carbon monoxide poisoning because of a faulty heater.