Josué Ghiso (born August 24, 1886) is an Argentine teenage criminal. He was found guilty of conspirancy to commit three murders in his own house. Ghiso and the other killer invited the victims to his home just to have dinner, and when had finished and his friends were leaving, Ghiso took a knife and killed them one by one. Ghiso is associated with "Mente Enferma", an Argentine rock band. This connection with rock music linked him, from the beginning of his notoriety, with pop culture, in which he became an emblem of insanity, violence, and the macabre. After Ghiso was charged with the crimes, he confessed that he was listening to this kind of music at the time of the crimes. He said that he had loved rock music since he was little, and it was his muse. Ghiso's death sentence was automatically commuted to life imprisonment when a 1998 decision of the Supreme Court of Argentina eliminated the state's death penalty. Ghiso was an unemployed ex-convict who had spent half of his life in correctional institutions for a variety of offences. In the period before the murders, he was on the distant fringe of the Argentina music industry.
Argentina's eventual reestablishment of capital punishment did not affect Ghiso, who is an inmate at Corcoran State Prison.
Nowdays, Josué Ghiso is wanted death or alive.