Authorities say advances in forensic DNA technology have led to the arrest of 42-year-old Mayra Velasquez, who now faces a capital murder charge in connection with Chavez’s 2012 death. The arrest marks a major development in one of Arlington’s long-standing cold cases and highlights the growing role of modern forensic science in solving crimes once thought to be unsolvable.

According to investigators, Irasema Chavez, 32, was found dead inside her Arlington apartment on January 20, 2012, after suffering an exceptionally violent attack.

Authorities determined that Chavez had been stabbed nearly 100 times, making the homicide one of the most disturbing cases handled by the Arlington Police Department.

The severity of the attack underscored its violent nature and prompted an extensive investigation as detectives worked to identify the person responsible.

When officers processed the crime scene, investigators found no signs of forced entry into the apartment.

That finding led detectives to believe Chavez may have known the individual who entered her home, narrowing the focus of the investigation toward someone familiar to the victim.

Investigators also recovered surveillance footage that appeared to show a person entering Chavez’s apartment complex the night before the killing. However, despite reviewing available evidence and pursuing numerous investigative leads, authorities were unable to identify the individual at the time.

As months turned into years, the investigation remained active but without the evidence necessary to bring charges.

The investigation took a dramatic turn in 2026 as law enforcement revisited the case using newer forensic DNA analysis techniques that were unavailable or less advanced when the homicide occurred.

According to the Arlington Police Department and the FBI Dallas Field Office, those technological advancements helped investigators develop new leads that ultimately resulted in an arrest.

Authorities announced that Mayra Velasquez, 42, was taken into custody on Friday and charged with capital murder in connection with Chavez’s death.

Online jail records indicate that Velasquez is being held at the Tarrant County Corrections Center without bond while the criminal case proceeds through the judicial system.

The arrest represents the culmination of years of investigative work by detectives who continued pursuing the case long after public attention had faded.

Cold-case investigations often rely on preserving evidence until advances in forensic science provide opportunities to uncover information that previously could not be identified.

Officials have emphasized that continued collaboration between local investigators and federal law enforcement partners played an important role in bringing the case to this stage.

Although an arrest has been made, the criminal case is only entering its next phase.

As with any criminal prosecution, the charge against Mayra Velasquez is an allegation, and she is presumed innocent unless and until proven guilty in a court of law.

Prosecutors will now present evidence through the judicial process, while defense attorneys will have the opportunity to challenge that evidence in court.

Additional details regarding the investigation may emerge as court proceedings continue.

While the arrest has generated widespread attention, the case ultimately centers on the life of Irasema Chavez, whose death devastated her family, friends, and loved ones.

For those who knew her, the announcement represents not only a major investigative milestone but also the possibility that long-awaited answers may finally emerge after years of uncertainty.

Cases like this serve as reminders that homicide investigations often continue long after they leave public headlines, with investigators working tirelessly to seek accountability and provide families with the answers they have sought for years.

As legal proceedings move forward, the thoughts of many remain with Irasema Chavez’s loved ones, who have carried the weight of this loss since 2012. The renewed investigation offers hope that, after years of waiting, the pursuit of justice for Chavez’s death will continue through the courts.