DNA breakthrough leads to arrest in 14-year-old Arlington cold case

DNA breakthrough leads to arrest in 14-year-old Arlington cold case
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For more than a decade, one question remained unanswered: Who killed Irasema Chavez? Now, Arlington police and the FBI say advances in DNA technology have led to a major break in the 2012 cold case. Authorities announced the arrest of 42-year-old Mayra Velasquez, who is charged with capital murder i