Pietro De Negri, better known as Er Canaro (Roman dialect: "the dog keeper"; born 28 September 1956), is an Italian criminal, a dog coiffeur (hence the nickname) and a cocaine addict. De Negri was born at Calasetta, in Sardinia. Later he lived in the Rome's neighbourhood of Magliana. At the age of 27, he killed former boxer, quarter tough guy, and fellow cocaine addict Giancarlo Ricci. The so-called Canaro's killing (Italian Delitto del Canaro) is notable for being one of the most gruesome crimes carried out in Italy since the end of World War II, particularly because the victim watched powerless during the excessive mutilation.The autopsy, however, later revealed that most of the tortures described by De Negri had, in fact, only been imagined by the man, who probably confused thought and