A showing profiling the 1991 rape and stabbing death of 17-year-old Crystal Faye Todd of Conway is scheduled to air at 10 p.m. tonight on Investigation Discovery's show "Stolen Voices, Buried Secrets."
The episode is called 'Killer Instinct' is set to air on the following cable provider channels: Time Warner Cable channel 251; HTC channel 104; Direct TV channel 285 and Dish Network channel 192.
Todd was found the morning of Nov. 17, 1991, in a ditch in the Maple community of Horry County. She had been stabbed at least 30 times, her throat was slashed and she had been raped.
After an intense three-month investigation, Horry County police charged Johnnie Kenneth Register, one of Todd's friends, with murder. Police collected DNA evidence from Todd's body that conclusively showed that there was only a one in 1.3 million chance that the sample was not a match to Register.
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The case was among the first in the Southeast and the first in the state to use DNA evidence for an arrest and conviction. Deoxyribonucleic acid is the basic material in chromosomes of a cell nucleus and contains a genetic code considered as unique as a person's fingerprints.
During an interview with police, Register confessed that he killed Todd, but later appealed, saying his confession was coerced.
Register, now 37, was convicted in 1993 and is serving life in prison.
He has appealed his conviction to the state Supreme Court, which upheld the conviction in 1996, and in 1997 the U.S. Supreme Court upheld that decision.