Zaira Viridiana was born on April 12, 1987, in Sinaloa, Mexico. Details about her early life and family are scarce, but her dedication to education was undeniable. From a young age, Zaira aspired to improve her life through academic achievement. At 18, she decided to leave Sinaloa behind and pursue higher education in Tijuana. There, she moved into a modest apartment in the Refugio neighborhood, a few blocks away from the Universidad Tecnológica de Tijuana, where she later earned her degree in business administration.
Zaira Viridiana excelled academically, and soon after completing her studies, she was offered a position at the university. For two years, she worked as the coordinator for the Competency Assessment Center, a role that allowed her to apply her knowledge and skills. During this time, she met Miguel Antonio Rivas Martínez, a professor at the university. Their professional relationship blossomed into a romantic one, leading to their marriage. Their happiness grew even more when they welcomed their first child, Alejandro.
Family and Professional Growth
Balancing motherhood and work, Zaira Viridiana took on various administrative roles, continuing to build her career. In 2013, she returned to the University of Tijuana, this time as a professor, teaching subjects like accounting and financial engineering. Her teaching portfolio expanded to include business law, socio-cultural formation, and financial management. During this period, the couple had their second child, a daughter named Melisa.
As their family grew, Zaira Viridiana and Miguel decided to move to a larger home. After securing a joint mortgage, they purchased a house in the Viya Fontana neighborhood of Tijuana. The family’s improved financial situation also allowed Zaira to buy a new car, further symbolizing their stability and success.

In 2020, Zaira Viridiana began teaching at a local high school, focusing on ethics, personal development, and preparing students for their academic journeys. That same year, the world was shaken by the COVID-19 pandemic. As schools shifted to online learning, Zaira Viridiana, concerned for her students’ education, launched a YouTube channel. Through this platform, she provided assignments, schedules, and exam preparation materials. Her students deeply appreciated her efforts, admiring her dedication.
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The Strain Behind the Scenes
Though Zaira’s professional life seemed to be thriving, her personal life was not as perfect as it appeared. For some time, her marriage to Miguel had been strained. They frequently argued, and their emotional distance grew. By November 2020, the relationship had deteriorated to the point that Miguel decided to end the marriage. Though he continued to be a devoted father, he no longer lived in the family home, visiting only to spend time with Alejandro and Melisa.
Despite the separation, Zaira Viridiana and Miguel maintained their jobs and routines, giving the impression of normalcy. However, the weight of the situation was increasingly felt by their children. Zaira, who spent most of her time with them, struggled to answer their questions about their father’s absence. She found herself torn between protecting them from the painful truth and confronting her own feelings of failure.
Christmas Eve brought a temporary reprieve from the tension in the house. Alejandro, nine, and Melisa, four, were overjoyed as they unwrapped presents under the Christmas tree—teddy bears, dolls, clothes, a skateboard. Their excitement filled the room, but Zaira Viridiana found it hard to share in their joy. Watching her children play, she was consumed by a deep sadness over her failed marriage. Though she put on a brave face for them, the pain was clear in her eyes.
As time passed, the children’s questions about their father grew more frequent. Zaira Viridiana, ashamed of the marriage’s breakdown, couldn’t bring herself to explain what had happened. She hoped the separation was temporary, but as the days went by, it became clear that there was no turning back. The emotional burden weighed heavily on her, pushing her toward a state of depression. She felt isolated and overwhelmed by her thoughts of an uncertain future.
As 2020 drew to a close, Zaira’s emotional struggles worsened. The overwhelming sadness of her failed marriage and the pressure of raising her children alone began to consume her. By the time the new year arrived, Zaira Viridiana saw no hope on the horizon. On January 2, 2021, just after noon, she called Miguel in a distraught state. Despite their separation, Zaira was still his wife, and the urgency in her voice caused Miguel to rush to her house.
A Chilling Discovery
When Miguel arrived, he used his key to enter the home, having moved out only six weeks earlier. Inside, he found Zaira Viridiana sitting on the couch, sobbing uncontrollably. Her clothes were drenched in blood, and Miguel immediately feared the worst. He repeatedly asked what had happened, but she remained silent. His concern grew into panic when Zaira refused to answer questions about their children.
Rushing to their bedroom, Miguel found Alejandro and Melisa lying in bed, still dressed in their pajamas. It was unusual for them to be asleep in the afternoon, and his heart sank as he noticed a knife and bloodstains near the bed. Terrified, he feared the worst—that his children had been harmed. Without wasting any time, he called emergency services.

By 3 PM, the police arrived in response to Miguel’s distress call. He told them what he believed had happened, explaining that Zaira Viridiana had confessed to killing their children. The officers entered the home and soon confirmed the heartbreaking scene. Alejandro and Melisa lay side by side on the bed, lifeless. While the blood on the floor suggested violence, the paramedics quickly determined that the children had not been stabbed. Instead, their pale faces and the marks around their necks told a different story—both children had been strangled.
Zaira Viridiana herself had minor injuries on her wrists, clearly self-inflicted, but not serious enough to require stitches. The paramedics confirmed that the children had died several hours before the police arrived. Forensic experts were called to the scene to conduct a thorough investigation and transport the children’s bodies for autopsies.
Evidence and Confession
During the investigation, forensic officers found the knife Zaira Viridiana had used on herself, but they also uncovered two letters left on the kitchen table—one for Miguel and one for her mother. The letters were written as if Zaira expected them to be read after her death. Her attempt to take her own life had failed, but the letters provided a window into her thoughts leading up to the tragedy.
The letter addressed to Miguel was five pages long, beginning with a confession. Zaira admitted that what she had done was unforgivable, and she did not seek understanding or forgiveness. She simply wanted to explain her actions and express her emotions. She took responsibility for her role in their separation but also accused Miguel of not giving her a chance to repair their relationship. She felt abandoned and betrayed, believing that Miguel had broken the bond they once shared as life partners.
In the letter, Zaira revealed the agony she felt over the separation. Her heartbreak deepened each time Melisa asked when her father would return, or when Alejandro expressed how much he missed Miguel. The thought of living without her children was unbearable to her. She wrote that she could not leave them behind and believed they would be better off with her, wherever they were headed. Zaira Viridiana confessed that she feared Miguel would eventually move on, rebuild his life, and neglect their children, just as she felt he had neglected her.
Zaira’s letter also mentioned her isolation. She admitted that she had not confided in anyone—not even her mother—about her emotional struggles. She urged Miguel not to be angry with her family, as they were unaware of her pain. Zaira Viridiana took full responsibility for her actions, acknowledging that she lacked the strength to continue living in a world that had changed so drastically. She felt that her life, once full of hope and promise, had become unrecognizable.
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A Tragic End
Zaira’s actions on that January afternoon were a devastating result of her deep emotional turmoil. Her inability to cope with the collapse of her marriage and the fear of losing her children to a future she could no longer envision led to this unthinkable tragedy. As investigators pieced together the events leading up to that day, it became clear that Zaira had been trapped in a spiral of despair, unable to see a way out.
In the concluding part of her letter to Miguel, Zaira Viridiana provided practical details, including information about her bank accounts and services. She mentioned that she had savings set aside for a project that would no longer be realized. She instructed Miguel to use these funds for the cremation of their children or for any other arrangements he deemed appropriate. As for herself, Zaira expressed that her body could be discarded anywhere, as she believed she did not deserve a proper burial.
The second letter, addressed to her mother, was shorter but equally heartbreaking. Zaira Viridiana acknowledged the pain she was about to cause and took full responsibility for her actions. She asked her mother not to seek answers or place blame on anyone else. Zaira Viridiana confessed that although she and Miguel had been living apart since November 14, 2020, she hadn’t told anyone, as she struggled to accept the reality of their separation.

In the letter, she described Miguel as a good husband and father, acknowledging that many of their marital issues stemmed from her own actions. She asked her family not to hold anger toward him and expressed her hope that one day, she might be forgiven. She ended the note by telling her mother how much she loved her.
The Arrest and Confession
At 33 years old, Zaira was arrested shortly after the incident. She confessed to authorities that she had taken the lives of her two children in the early hours of that tragic Saturday. Toxicology tests confirmed that Zaira Viridiana was not under the influence of any substances, and she committed the crime with full awareness. A neighbor, who had been awake that night, reported hearing nothing unusual—no screams, no arguments, nothing that would have alerted the authorities.
In the days following the tragedy, the local community mourned the loss of Alejandro and Melisa, creating a makeshift memorial outside the home with flowers, candles, and balloons. Despite the outpouring of sorrow, the forensic reports revealed a haunting truth: both children had died from suffocation. Zaira Viridiana had asphyxiated her children by covering their mouths and noses with an object, likely a pillow, causing bronchial aspiration. Alejandro had tried to fight back, while Melisa was pinned face down with Zaira’s knees pressing into her back, as evidenced by bruises found during the autopsy.
According to Zaira’s confession, the events began on the night of January 1, 2021. After putting her children to bed and waiting for them to fall asleep, she returned to their room in the early morning. She took a pillow and began to suffocate Alejandro first. Although he resisted, his attempts were in vain. She then moved to Melisa, using the same method. To ensure they wouldn’t survive, she also used her hands to block any airflow. After the children were gone, Zaira Viridiana went to the kitchen, retrieved a sharp object, and attempted to take her own life by cutting her wrists. However, her suicide attempt was unsuccessful.
Legal Proceedings and Charges
During her initial hearing, Zaira Viridiana chose to remain silent as the public prosecutor, her defense attorney, and the judge presented their statements. The second hearing took place on January 6, 2021, where Zaira was officially charged with aggravated homicide due to the familial relationship. Her defense lawyer presented no evidence to counter the prosecution’s claims. The judge explained the basis for her indictment, which was supported by interviews with Miguel, autopsy reports, and Zaira’s own confessions, including the letters she had written. These handwritten notes played a critical role in confirming her responsibility for the crime.
Zaira only spoke to express confusion about the legal process and inquire about the timeline for the prosecution’s investigation. The court set a six-month deadline for the public prosecutor to complete their investigation. In the meantime, Zaira Viridiana was ordered to remain in prison, awaiting trial. If convicted, she faced a potential life sentence, with a maximum penalty of 60 years in prison.
Zaira was due to reappear in court on June 6, 2021. However, she never made it to that hearing. On May 1, 2021, she was found dead in the prison’s shower area. The exact circumstances surrounding her death remain unclear, but it marked the tragic end of a story filled with heartbreak and loss.
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The Final Hours of Zaira’s Life
On the morning of May 1, 2021, prison guards followed their routine by giving Zaira Viridiana a bucket of hot water for her morning wash around 7 AM. However, when the time for roll call came, she did not exit the shower area. Concerned, the guards entered the bathroom and made a grim discovery—Zaira’s lifeless body. Paramedics arrived promptly but were unable to revive her, confirming her death at the scene.
Zaira had been housed in a special protective area of the prison, shared with only one other inmate, due to her need for extra care. She was under psychiatric evaluation and prescribed controlled medications to help manage her mental state. Despite this care, it appeared that the support she received was not enough to alleviate the deep emotional pain caused by her actions.
Authorities speculated that the events of the previous day, April 30, celebrated as Children’s Day in Mexico, may have been a powerful emotional trigger for Zaira. While other inmates shared joyful moments with their children, Zaira Viridiana was left to confront the unbearable memory of the crime she had committed. Several prisoners later mentioned that she had been showing visible signs of deep depression leading up to her death. They reported hearing her crying frequently and observed her emotional distress.
One inmate recalled overhearing Zaira’s phone conversation in which she had broken down, repeatedly expressing guilt over the deaths of her children. It was clear to those around her that she was unable to forgive herself for what she had done.

Investigations and Inquiries
Zaira’s death prompted an investigation by the State Attorney General’s Office. The State Human Rights Commission also launched an inquiry to determine whether there had been negligence on the part of the prison staff. The investigation ultimately concluded that no one was aware of Zaira’s intentions to end her life, and there had been no way to prevent the tragedy.
Despite these findings, the situation highlighted the difficulty of managing inmates in emotional crises. It also raised questions about whether more could have been done to provide Zaira Viridiana with the psychological and emotional support she clearly needed.
In the days following Zaira’s death, family and friends gathered for her Christian burial. It remains unknown whether she was laid to rest alongside her two children. Her story, however, serves as a somber reminder of the importance of mental health care, especially in moments of intense crisis. Zaira’s inability to cope with her overwhelming despair led to the tragic loss of her children’s lives and, ultimately, her own.
The case underscores the necessity of addressing mental health struggles openly, as well as ensuring families have access to emotional support systems. Zaira’s silence about her struggles—both with her family and within the prison—revealed the devastating effects of isolation and hopelessness. Her story is a poignant reminder of how unchecked emotional pain can lead to irreversible consequences.