Fernando Hernández Leyva was born on November 30, 1964, in Cuernavaca, Morelos, Mexico.

In 1999, Fernando Hernández Leyva was captured by Mexican authorities. He claimed to have killed over 100 people and kidnapped six others. These crimes allegedly took place in several states, including Morelos, Jalisco, Colima, Guanajuato, and Michoacán. Initially, people doubted his claims because many of the crimes were unrecorded. However, investigations suggested that he might be responsible for at least 137 murders.

After his confession, Leyva went on trial with three accomplices. He faced multiple charges, including robbery and kidnapping, as well as the numerous murders attributed to him. During his trial, he retracted some of his earlier statements. Leyva admitted to abducting a journalist and killing a police officer but claimed that he was coerced into confessing by law enforcement. He alleged that he had been beaten and threatened with harm to his wife if he did not plead guilty.

Leyva was transferred to a penitentiary in Morelos, where public protests erupted. Many people were angry and wanted to take justice into their own hands. Due to his history of escaping custody, he was placed under maximum surveillance. The prosecutor announced that the number of deaths linked to Leyva continued to increase as investigations progressed.

In April 1999, Leyva attempted suicide in his cell. He used an improvised rope, but it broke under his weight, causing him only minor injuries. Despite his past actions, Leyva remained in prison. If he completes his sentence, he will be eligible for release in 2049, when he would be 84 years old. Little else is known about his case or personal life.