Investigative genetic genealogy helped identify Mayra Velasquez, 42, as the suspect in Irasema Chave...
14 years after woman was stabbed 100 times, her close friend was arrested in the Texas cold case
Investigative genetic genealogy helped identify Mayra Velasquez, 42, as the suspect in Irasema Chavez's 2012 stabbing death in the Arlington cold case.
Author: NBC News
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