Analysis of information sources in references of the Wikipedia article "Enrico Caruso" in English language version.
The note stated that lye or other corrosive agents would be slipped into Caruso's wine or tea.
Enrico Caruso accused Antonio Misiano with trying to obtain $15,000 from him by Black hand methods.
Before the Mafia captured the American crime spotlight in the 1920s, there was the Society of the Black Hand, which made ends meet by terrorizing and extorting fellow Italians, mainly, among them tenor Enrico Caruso and Italian-American business owners