The only thing linking the laptop to Williams was the testimony of a witness. Even if the witness is telling the truth, he has no way of knowing how Williams obtained the laptop.
By any reasonable standard, all this is extremely flimsy evidence: More than a year after the murder, the police found a "Post-Dispatch ruler and calculator" in the suspect's car that belonged to the victim? And someone testified that Williams had the victim's laptop. And it is on the basis of this pitifully weak evidence that you would justify the execution of Williams, the suspect? Even though, as the Innocence Project correctly observes, there is no direct physical evidence linking Williams to the crime scene, and the DNA recovered from the crime scene does not match Williams?
https://law.justia.com/cases/missouri/supreme-court/2003/sc-...