Roberto José Carmona

On December 13, 2022, Carmona managed to escape from his partner's house, taking advantage of the fact that the police and neighbors were distracted from watching the semifinal match between Argentina and Croatia for the FIFA World Cup.

In October 2021, Carmona sewed his mouth shut inside the Penitentiary Complex II in Sáenz Peña, following a refusal by authorities to give him a cellphone to communicate with his relatives.

In 2014, he was allowed temporary leave to visit his partner, who lives in Córdoba. The leave allowed him three days out of prison every four months, as his partner suffered from osteoarthritis that prevented her from moving, in addition to having a quadraplegic son in need of medical assistance.

In 2011, after several psychiatric evaluations, Carmona was diagnosed as a psychopath. In their reports, psychiatrists noted that he was incapable of empathizing with the suffering of others and sought to kill for simple pleasure.

After this incident, Carmona was transferred to the Chaco Regional Prison, but due to his violent nature, he was transferred again - this time to a maximum security prison in Resistencia. In 1997, he killed another inmate, Demetrio Pérez Araujo, by stabbing him in the chest with the sharpened end of a broomstick. For this and other crimes committed beforehand, he was given a second life sentence without the possibility of parole.

In 1994, Carmona stabbed to death Héctor Vicente Bolea, the leader of a group of prisoners who had tried to lynch him after Carmona got into a fight. The exact murder weapon was never found, but he was nonetheless convicted and sentenced to a further 16 years imprisonment.

Carmona was transferred to the San Martín Prison in Córdoba to serve his sentence. In 1988, he stabbed fellow inmate Martín Castro after, in his words, he did not "lend him his wife for sex". Castro survived, but hours later, while he was sleeping, Carmona threw boiling water on his face, permanently disfiguring him.

During his adolescent years, Carmona was transferred between several juvenile institutions. As an adult, he was imprisoned on multiple occasions for robbery, passing through the prisons in Olmos, Sierra Chica, San Nicólas, La Plata and Junín. In 1982, he was sentenced to 10 years imprisonment for aggravated robbery, deprivation of liberty and drug usage, but was released on parole on January 10, 1986.

On the night of January 14, 1986, Carmona was driving his Ford Taunus through Villa Carlos Paz when he saw three young people on the side of Route 20. They were 16-year-old Gabriela Ceppi and her friends, Guillermo Elena and Alejandro del Campillo, who were returning home from a dance club and whose car had a flat tire. Carmona stopped and helped them change the tire, but after they were done, he pointed a gun at them and stole their belongings. He then forced Ceppi into his car and drove away. After driving for several kilometers, he stopped alongside a dirt road and raped her.

After Gabriela's abduction was reported to the police, Carmona was arrested on February 11, 1986, in General Pacheco, just after he had kidnapped a cab driver and a family in order to rob them. He was put on trial and swiftly convicted, receiving a life sentence for murder, multiple counts of aggravated robbery and aggravated kidnapping.

Roberto José Carmona (born 1963), known as The Human Hyena (Spanish: La Hiena Humana), is an Argentine thief, rapist and serial killer. Initially imprisoned for killing a young woman in 1986, Carmona proceeded to kill two inmates in separate incidents and culminating with the murder of a taxi driver after a successful escape attempt in 2022.

Roberto José Carmona was born in 1963 in Buenos Aires Province, the only son of an unknown father and a woman named Magdalena Bonet. Lacking the financial resources to support him, Bonet left him at the Villa Elisa home in La Plata, where Carmona claimed he had been abused by other children and authorities who constantly beat him and left him without food. He was then moved to convent, where he also claimed to have suffered physical abuse.