george john dasch, another saboteur, almost immediately lost his nerve and betrayed his comrades. he surrendered and told the fbi of burger's location. fbi agents followed burger to two other saboteurs, before arresting him. when all eight agents had been apprehended, the saboteurs were tried and convicted of treason and espionage. all were sentenced to execution by electrocution; however, burger's sentence was commuted by president franklin d. roosevelt to life in prison and dasch's to thirty years because of their cooperation.