Even then, some partisans remained in the countryside, and were unwilling or unable to rejoin the community; they became known as the cursed soldiers. Stanisław Marchewka "Ryba" was killed in 1957, and the last AK partisan, Józef "Lalek" Franczak, was killed in 1963 – almost two decades after World War II had ended. It was only four years later, in 1967, that Adam Boryczka—a soldier of AK and a member of the elite, Britain-trained Cichociemny ("Silent Unseen") intelligence and support group—was released from prison. Until the end of the People's Republic of Poland, Home Army soldiers remained under investigation by the secret police, and it was only in 1989, after the fall of communism, that the sentences of Home Army soldiers were finally declared null and void by Polish courts.