Velasquez's arrest comes after Arlington PD and the FBI Dallas Field Office made a breakthrough in the 2012 cold case murder of 32-year-old Irasema Chavez. Investigators from the Arlington Police Department and the FBI Dallas Field Office have made an arrest in connection to a 2012 cold case murder in Arlington. 2012 Arlington murder arrestMayra VelasquezWhat we know:Public records show Mayra Velasquez was arrested on July 16. Dig deeper:Arlington Police and the FBI Dallas Field Office confirmed Velasquez had been arrested in connection to the 2012 murder of 32-year-old Irasema Chavez. In Nov. 2024, Arlington PD and the FBI Dallas Field Office partnered on the case by using the FBI's Investigative Genetic Genealogy program.