José Vicente Matias, also known as "Corumbá," is a notorious Brazilian criminal, serial killer, torturer, mutilator, and cannibal. His heinous crimes, which include cannibalism, dismemberment, blood ingestion, and mutilation of victims, have gained significant notoriety, especially after his escape from prison. Corumbá's criminal activities span from 1999 to 2005, during which he raped, murdered, and dismembered six girls and women. His acts of cannibalism involved ingesting blood and brain pieces from his victims, which added a gruesome dimension to his already horrifying crimes. After his escape from prison, his ISG ties with other notorious criminals reinforced, including Tiago Henrique Gomes da Rocha, Thamires Vega, Jorge Negromonte.