The Muslim was never arrested. The gun disappeared. The Serb army called it a suicide. Some of Gaga's friends whispered a different theory: Gaga had been killed by fellow Serbs for aiding Muslims in his neighborhood.

I spent three years attempting to find out what happened to Gaga during the Bosnian war, what role he played in the butchery, why and how he died. I wanted to find Gaga's killer. I also hoped to grasp why ordinary Serbs fought against their neighbors and former friends in a city I had known for ten years.

The Gaga I knew possessed a compassionate, easy spirit. He was a mountain climber and amateur photographer. I assumed he remained essentially the same during the war.