On 29 July 1925 Botwin shot dead Josef Cechnowski in Lwów. Cechnowski was an agent of the Polish secret police
Defensywa. He had infiltrated the Communist Party in
Warsaw, and worked as an informer. In 1925, the communists discovered his double role and resolved to kill him. One assassination plot in Warsaw was exposed, and three communist party members were arrested and subsequently executed, after which Cechnowski moved to Lwów, where he believed there was less risk that he would be recognized. Botwin was arrested at the crime scene with no resistance. His trial was short as Botwin pleaded guilty and accepted all the consequences. The verdict was announced a day later, and he was sentenced to death by the
drumhead court in Lwów. Botwin's defense made a petition for the presidential pardon but it was rejected by the president
Stanisław Wojciechowski. Naftali Botwin was executed by a firing squad on 6 August 1925 at the
Brygidki prison in Lwów. Botwin did not want his eyes to be covered. In his last words Botwin exclaimed: ″Down with bourgeoisie! Long live the social revolution!″ He was buried at
Yaniv Cemetery, Lwów (now Lviv). == Naftali Botwin Company ==