Cornyn, Welch introduce the Carla Walker Act to help solve cold cases
May 22—WASHINGTON U.S. Senators John Cornyn (R-TX) and Peter Welch (D-VT) on Thursday introduced the Carla Walker Act, which would dedicate existing federal grant funds to support forensic genetic genealogy (FGG) DNA analysis and help solve previously unsolvable cold cases. The bill is named for Carla Walker, a Fort Worth native whose murderer was finally identified 46 years after her death with the help of this advanced technology.
"Fort Worth native Carla Walker was abducted in a bowling alley and tragically murdered in 1974, but it took more than four decades and the advent of forensic genetic genealogy DNA analysis for her killer to be identified and brought to justice," said Sen. Cornyn. "I am proud to have authored this legislation, which would make this cutting-edge DNA testing technology more widely available to law enforcement so they can better identify and prosecute offenders, solve cold cases, and bring closure to victims' families."
"Advancements in forensic DNA technology have revolutionized our ability to combat crime. In Vermont, detectives were able to use forensic genetic genealogy analysis to help provide answers to a family who thought they might never come. We've also seen how this technology can be a powerful tool in giving those wrongly accused a chance to clear their names," said Sen. Welch. "Our bipartisan bill will help investigators across the country harness the incredible power of FGG technology to crack cold cases and deliver justice to countless victims and families, and I'm thankful for Senator Cornyn's leadership on it."
U.S. Congressman Wesley Hunt (TX-38) is leading companion legislation in the House of Representatives.
Background:
Typically, when a suspect's identity is unknown, a crime laboratory uploads the genetic material recovered from a crime scene into the FBI's national database to search for DNA matches between the forensic sample and any known offenders. While this traditional form of forensic DNA profiling only examines 13-20 Short tandem repeat (STR) DNA markers, forensic genetic genealogy (FGG) technology examines over half a million Single Nucleotide Polymorphisms (SNPs) that span the entirety of the human genome. It does so by cross-referencing shared blocks of SNP markers to identify relatives of the genetic profile by uncovering shared blocks of DNA. This enables criminal investigators to build family trees that ultimately help determine the sample's identity and solve cases.
Carla Walker was abducted from a bowling alley parking lot in Fort Worth, Texas, on February 17, 1974. Her body was found three days later in a drainage ditch 30 minutes south of Fort Worth. The Fort Worth Police Department was able to collect a few forensic samples and clothing items from the crime scene, but law enforcement could not solve the murder due to limited forensic technology at the time. Carla's brother, Jim Walker, never stopped searching for answers and nearly 50 years later, FGG DNA analysis was conducted on the last remaining DNA on a piece of Walker's clothing, which led to a successful DNA match with the McCurley family and ultimately identified Glen McCurley, Jr. as the killer, who confessed in 2021 and died in prison on July 14, 2023.
Sen. Cornyn's Carla Walker Act would create a pilot program to make this cutting-edge FGG DNA analysis more widely available to investigative agencies to:
— Aid in resolving previously unsolvable cold cases;
— Assist in the identification of criminals;
— Seek justice for previously unidentified victims;
— Help exonerate wrongly accused suspects;
— And bring closure for the victims' loved ones.
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