Audio: Oral argument on appeal to Missouri Supreme court 
Text: Missouri Supreme Court Opinion.

Case Facts:   On Friday, January 11, 1991, just before 6:30 a.m., eleven-year-old Elissa Self left her house at 3844 Humphrey Street in South St. Louis to walk less than three blocks to catch her bus to Enright Classical Junior Academy, a school for gifted children. It was a cold, rainy morning, and Elissa's mother insisted that she wear boots and carry an umbrella. Elissa never arrived at school, and at about 8:20 a.m. the school called Elissa's parents to tell them that Elissa was not present. Elissa's parents drove around the neighborhood looking for her, but they were unable to find her, and they went home and called the police.

During the next four days, police canvassed the neighborhood, interviewed possible witnesses, and investigated calls and letters on possible sightings. On Tuesday, January 15, 1991, two persons who were scavenging at the Black Bridge recreation area along the St. Francis River, 135 miles south of St. Louis in Wayne County, found Elissa's body in a large pile of debris that had washed up on the riverbank. Police soon searched the area and found Elissa's boots, but none of her other belongings. 

At about 9:24 p.m., on January 26, 1991, eleven days after Elissa's body was found, a City of Kirkwood police officer saw Martin Link driving with a headlight out and attempted to pull him over. Link led the officer on a high-speed chase, eventually crashing his car into a telephone pole, and was then taken into custody. In a search of the car, officers found a jar of petroleum jelly with Link's fingerprints on the jar and flecks of blood embedded in the jelly. 

DNA tests conducted by two different labs showed that Link's DNA matched the DNA found in sperm cells on vaginal swabs taken from Elissa's body. The state's DNA expert set the odds of such a match at one in 6,600. The testing also revealed that Elissa's DNA matched the DNA in the blood found in the petroleum jelly jar seized from Link's car. The odds of that match were one in 48. The joint probability of both of these matches occurring by chance was less than one in 300,000. 

Link did not testify at trial, but he called two witnesses who had reported seeing Elissa after 6:30 a.m. on January 11, 1991. He also called a detective who had worked with one of these witnesses to make a composite drawing of a man she allegedly saw with Elissa, but who did not resemble Link. He also called two witnesses who worked as buyers in the clothing industry to testify to the large number of cotton/ramie sweaters, like the one Elissa wore, that were imported every year. He called two DNA experts to testify that the DNA tests performed by the other two laboratories were faulty. In addition, one of the DNA experts and a third expert testified that the state's conclusions about the probabilities of Link's DNA being found in the sperm on the vaginal swab and Elissa's DNA being found in the blood in the petroleum jelly jar were incorrect.

At the close of the evidence, instructions, and arguments, the jury found Link guilty of kidnapping, forcible rape, and murder in the first degree.