Walter Alfredo De Giusti (1962 in Rosario – May 27, 1998)[1][2] was an Argentine spree killer who was known for murdering musician Fito Páez's grandmothers, as well as three other women.
A week later, at noon on November 7, 1986, on Balcarce Street 681 in the same city, the De Giusti brothers committed another brutal crime.
One month later, on December 4, 1986, De Giusti became a police officer for the sub-office of Pueblo Esther, located 15 kilometres south of Rosario.
Finally, De Giusti was betrayed by a local transvestite, who wore a necklace that belonged to one of Páez's grandmothers and declared - with an undercover agent - that it was a gift from "her boyfriend Walter."
Once held in prison, De Giusti was taken to compulsory police retirement: he continued to receive 70 percent of his salary for six more years, until November 1993.
Finally, and taking into account that he contracted HIV in prison, the defence requested that De Giusti serve the sentence in his home.
On Wednesday, June 3, 1998, at 12:30 noon, by order of Judge Efraín Lura, De Giusti was admitted to the Rosario prison to properly serve his sentence.