duane deaver had been fired from his job and some of the state's critical blood evidence would be inadmissibleed because of deaver. he was all over the crime scene. >> reporter: and there was another important victory for peterson's side. >> what types of services did you perform? >> oh wow, that's -- that's pretty broad. >> reporter: brad, the male escort, a sensational centerpiece of the prosecution's case, wouldn't be part of a second trial either, a judge said. the escort had been revealed in a search that was deemed illegal. >> the search warrant that resulted in the seizure of the computer was found to be invalid. >> reporter: furthermore, that dramatic trial within a trial about michael's long-dead friend in germany? well, a change in north carolina state law regarding the admissibility of evidence meant a second jury might not hear that story either. >> the male escort is gone, the death in germany is gone, the expert blood testimony is gone. you're left with the autopsy pictures. >> reporter: yeah? >> the medical examiner's testimony. and maybe the prosecution's theory for motive. is