In 1903 Cosetti challenged a rival artist , Augusto Mussini ( 1870 -- 1919 ) to a duel .
Cosetti had become infatuated with Goretti .
In 1903 Cosetti challenged a rival artist , Augusto Mussini ( 1870 -- 1919 ) to a duel because he had become infatuated with Goretti .