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Solving Human Crimes with Animal DNA

by Beth Wictum & Trina Wood

Her body was found nude in a wooded area of Florida, wrapped in a bed sheet and shower curtain that was secured at the head and feet with duct tape. Shantay Leann Huntington’s cause of death: asphyxiation. Male DNA was recovered from the duct tape and shower curtain, but the profile didn’t match known samples in CODIS. After her male traveling companion was eliminated as a suspect, the case went cold.

Three years later, the Veterinary Genetics Laboratory Forensic Unit (VGL Forensics) at the University of California, Davis received 13 dog hairs from the bed sheet for DNA analysis. Two of the hairs contained enough DNA to profile. Although they weren’t an exact match to the two dogs who lived across the street from where Huntington was found, there was enough similarity to suggest that the hairs came from a full sibling of those dogs. Upon further investigation, it was discovered that two pups from that litter had been given to the homeowner’s brother-in-law, Guillermo Romero, whose wife had a restraining order against him by the time of testing. Law enforcement obtained samples of Romero’s DNA and matched it to DNA found on the shower curtain and duct tape used to wrap the young woman’s body. In 2013, Romero pled guilty to manslaughter.

 Animal DNA profiling is becoming more commonplace as investigators realize that the same techniques used in human DNA analysis can also be applied to animal evidence such as saliva, urine, feces, blood, and hair. Animal evidence can help solve a wide range of cases from animal cruelty or theft, to animal attacks on humans, and human-on-human crimes like robbery, rape, and murder. Dog feces evidence from two different violent crimes was analyzed and presented in court to help convict defendants in a triple homicide and in a rape. Dog urine from territorial marking on a truck tire was profiled in a sexual assault case, leading to a plea deal. Blood evidence found on the clothing of burglary suspects who silenced barking dogs by slitting their throats or by placing them in a lit oven was used successfully by prosecutors.
Continue reading the entire Evidence Magazine article here.

Short URL: http://caninechronicle.com/?p=49045

Posted by on May 19 2014. Filed under The Buzz. You can follow any responses to this entry through the RSS 2.0. Both comments and pings are currently closed.

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