A Syrian migrant, who reportedly bragged about shooting unarmed soldiers loyal to Syrian President Bashar Assad, went on trial in Austria Wednesday, charged with murder in the context of terrorism.The alleged deaths occurred in Homs, Syria. If convicted, the unidentified 27-year-old could face life in prison, but defense lawyers were trying to reduce the penalty, arguing the defendant was severely traumatized at the time, the BBC reported.The man allegedly bragged to other asylum-seekers about shooting unarmed government soldiers, Austrian media reported.