Adam, who together with another two reporters of "Berliner Zeitung" carried out an independent investigation into the Racak massacre a year after it had happened, brought into question conclusions of the international community on the massacre in which 45 Kosovo Albanians were killed.
The German reporter accused the then world leaders, including a former US President, Bill Clinton, of having invented an alibi for the subsequent attacks on Serbia.
After the massacre took place on 15 January 1999, Serbian authorities refuted accusations for the massacre, claiming that members of Kosovo Liberation Army (OVK) put bodies of their comrades, who previously lost their lives in skirmishes with Serbian police, at the scene of the massacre while asserting that those were dead villagers.
During today's testimony the German reporter presented the same thesis.
Although a prosecutor presented findings of forensic experts who had established that victims had been shot at close range at the site of the crime in Racak, the witness stuck to his statement while he was cross-examined by the prosecutor.