. >> we always wondered if it was sharron zachary by herself or sharron zachary with others.e trial, sharon zachary insisted she was innocent, but the forensic evidence told a different story. she was convicted of first-degree murder and sentenced to life in prison. >> i'm glad they got her, but i don't want to sound like i'm out for vengeance, although if they wanted to kill her, i'd volunteer. >> it was the shoe impression on a shard of glass and the partial thumbprint on the leather belt that solved the case. >> in my 12 years of doing latent print work, this case ranks an right up near the top, if not the most difficult latent fingerprint that i've had to identify. so, this was a very, very satisfying case for me to be involved with. >> criminals always seem to make mistakes. i believe the mistakes in this case by sharon zachary were because she was fighting the clock. >> this trial would have never happened without the forensics. we had a clear motive, money. but to show that she was there, to show that the print, the shoe print, the thumbprint, were from her, we wouldn'