How Did Paulo Vanzolini Die?

Paulo Emilio Vanzolini was a Brazilian scientist and music composer. He was best known for his samba compositions, including the famous "Ronda", "Volta por Cima", and "Boca da Noite", and for his scientific works in herpetology. With Carl Gans he was one of the two leading authorities in worm lizards (Amphisbaenia).He is considered one of the greatest samba composers from São Paulo. Until his death, he still conducted research at the University of São Paulo (USP).