The Wilson Murder Forensic Files : Season 1 Episode 8

Eye doctor Jack Wilson is found dead by his wife Betty, having been beaten, stabbed and lying in a pool of blood with a baseball bat nearby. Police arrest an itinerant painter/handyman who is found with the doctor's credit cards. He accuses the doctor's unfaithful wife and her twin sister of hiring him to commit the murder. The wife is sent to prison, but at her sister's trial, attorneys finally bring in a forensic expert who testifies that the crime could not have been committed the way the painter said. The sister is acquitted. But the wife remains in prison, and the mystery goes unsolved.