He first studied under Gaetano D'Agostino, but later enrolled at the Royal Institute of Fine Arts in Naples, where he studied under Filippo Palizzi, Domenico Morelli and Stanislao Lista.
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He did get commissions in the last decade of the 19th century to decorate the Caffè Gambrinus in Naples, the ceiling (1895) of the Garibaldi Communal theater at Santa Maria Capua Vetere, and the ceiling (1897-1898) of the refurbished Palazzo della Borsa in Naples where he painted allegories of work and history.
Amatuna was a later suspect in the murders of Powers supporters Harry Raimondi and Gaetano Esposito.
Gaetano Donizetti | Giancarlo Esposito | Gaetano Vastola | Gaetano Previati | Joseph Esposito | Gaetano "Tom" Reina | Gaetano Stefano Bartolozzi | Gaetano Scirea | Gaetano Saya | Gaetano Reina | Gaetano Filangieri | Gaetano Fidanzati | Gaetano Bavagnoli | Tony Esposito's | Sammy Esposito | Michael Esposito | Mary Ann Esposito | John Esposito | Joe Esposito (singer) | Joe Esposito (mobster) | Joe Esposito | Joe "Bean" Esposito | Giancarlo Esposito's | Gaetano Ungaro | Gaetano Rossi | Gaetano Ricciolini | Gaetano Pugnani | Gaetano Osculati | Gaetano Merola | Gaetano Kagwa |