outlet wanted it. nancy grace invited us on for an interview. >> welcome to pros and cons, david protest, professor, i know blood spatter evidence. how could this guy have gotten blood spatters on his shirt if he wasn't there when the crime was committed? >> he doesn't deny being there. he was unconscious, toxicology reports confirm this. my students conducted interviews who suggest strongly that twila busby's uncle could have been the killer. >> he was completely checked out. you're taunting skinner and a bunch of other dopers. that's what you've got. skinn skinner did it and he got the death penalty. >> mr. mann, i'm sorry, a bloody set of fingerprints were found on a bag containing the knife. will you join me in requesting the court conduct dna evidence before a possibly innocent man is put to death? >> gentlemen and emily, i'm