further averred that defendant would not allow them into his apartment, and that he threatened to kill them, when they tried to go inside to see if Marcy was there. Dori and Gay both testified that after that they never saw or heard from Marcy again. Moreover, Panisi testified that on his third visit to defendant's apartment, he observed Marcy's body rolled up in a carpet and he watched as defendant put the body inside the trunk of his mother's car and drive off. In addition, Marcy's mother testified to the exhaustive efforts she made in locating her daughter, as well as to Marcy's habit of continually remaining in contact with friends and family. In light of this overwhelming evidence, we find that there is no reasonable probabilitycriminal background, his counting-card scams in Las Vegas, and his homelessness. As such, we find it highly improbable that the jury would have set aside all this evidence simply because Panisi stated that he served in Vietnam 30 years before. Rather, the record reveals that Panisi's credibility hinged on the fact that his testimony regarding the crime was corroborated in nearly every respect by other witnesses who testified at trial, namely Sexton, Dori, Gay and Harold. The only additional and different piece of evidence offered by Panisi was his testimony that he observed Marcy's body in the rug in defendant's apartment on February 18, 1984. However, this evidence was already challenged by defendant's witness, Officer Moreno, who testified that in the early afternoon of February 18, 1984, he