THE CHALLENGES ARE HOW HARD IT IS TO BUILD A PROFILE AS WE DISCUSSED FROM THE EVIDENCE. WE WORKED THE CASE IN TEXAS, CARLA WALKER CASE, 17-YEAR-OLD RAPE AND MURDER IN 1974. HOW QUICKLY CAN YOU SEE A TURNAROUND IN CASE ONCE DNA IS SUBMITTED TO A LAB? > IT CAN BE VERY QUICK. POLICE HAD A SUSPECT FAIRLY QUICKLY AFTER SUBMITTING EVIDENCE. > YOU ARE IN TEXAS, LAST WEEK IN CHAPEL HILL POLICE ANNOUNCED THE ARREST AND THE DEATH. AS YOU CAN IMAGINE, THERE MUST BE SO MANY OTHER CASES LIKE THIS ONE THAT HAVE EVIDENCE THAT REMAINED BUT DID NOT PROVIDE A FRUITFUL LEAD IN THE PAST ECONOMIC BE RE-EXAMINED WITH THESE NEW METHODS. INCREDIBLE INFORMATION WE ARE GATHERING FROM EVIDENCE EVEN A FEW YEARS AGO WAS NOT SUITABLE FOR FURTHER ANALYSIS AND IT IS INCREDIBLY EXCITING BECAUSE WE ARE UNLOCKING INFORMATION FROM CRIME SCENES THAT HAVE BEEN EXHAUSTED IN THE PAST. WE ARE LOOKING AT TENS OF THOUSANDS OF HUNDREDS OF THOUSANDS OF MARKERS. DAKOTA SPRING SYSTEM LOOKS THE 20 MARKERS OF YOUR DNA. WHEN WE TAKE IT THAT WAS PREVIOUSLY INACCESSIBLE AND WE UNLOCK A LOT OF INFORMATION. EVIDENCE SOMETIMES FAIL OR UNACCEPTABLE AT DNA LABS. WHAT NEEDS TO HAPPEN IS YOU NEED SPECIALIZED METHODS LIKELY DEVELOPED AT OTHRAM THAT ALLOWS US TO TAKE INFORMATION FROM THE MOST CHALLENGING EVIDENCE. DO A MEDICAL TEST OR CONSUMER TEST WITH THE CONSUMER COMPANY, FRESH DNA FROM YOUR TONGUE OR MOUTH OR BLOOD, CRYING THING LIKE THIS COULD BE TRACE AMOUNT OF DNA LEFT, IT COULD BE OLD IN DEGRADED OR BROKEN UP INTO LITTLE PIECES.
> IN A TYPICAL CASE, MOSTLY OLDER CASES BUT NOT ALWAYS, NOT MUCH EVIDENCE LEFT. WALK US THROUGH THE PROCESS HOW YOUR TEAM PROCEEDS ON A CASE LIKE THIS. > IN LAYMAN'S TERMS BECAUSE YOU KNOW A LOT ABOUT THE CHEMISTRY AND SCIENCE BEHIND IT. OUR LAB USED A PROCESS CALLED GENOME SEQUENCING TO ACCESS MORE INFORMATION FROM THE CRIME SCENE THING PREVIOUSLY ACCESSED AND BUILT THIS COMPREHENSIVE PROFILE GIVING THEM MARKERS THEY COULD USE TO FIND RELATIVES OF THE FAMILY TREES AND USE ADVANCED INVESTIGATIVE TECHNIQUES YOU HAVE HEARD OF TO FIND OUT WHO IS RESPONSIBLE FOR THE CRIME. WHAT WAS YOUR LAB INVOLVEMENT IN THE ALMA JOINS CASE? > THE ROLE WE PLAYED IN THE CASE WITH HAVING DNA EVIDENCE FROM THE CRIME, LEADS WERE NOT GENERATED TO SOLVE THE CRIME.
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WE HAVE HEARD A LOT ABOUT DNA HELPING THE CRACK COLD CASES, ESPECIALLY THE PAST WEEK IN OUR AREA. A DNA LAB BASED IN TEXAS IS RESPONSIBLE FOR HELPING POLICE THE DOTS THROUGH DNA ON THIS CASE. A DNA SAMPLE FROM A FAMILY MEMBER CONFIRMED PAUL CROWDER AS THE PERSON RESPONSIBLE FOR THE CRIMES. HOMICIDE DETECTIVES FOLLOWED UP CREATING A DNA PROFILE OF THE SUSPECT. POLICE FOUND THE UNSOLVED CASE IN 2011 WHEN THEY WERE MOVING BOXES OF INFORMATION ON OLDER CASES.
ALMA JONES WAS 77 YEARS OLD WHEN SHE WAS KILLED. TARTARE > DNA HELPED RALEIGH POLICE SOLVE A MURDER AND RAPE FROM 1977.
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