Marriage of suspect to witness may complicate prosecution of triple homicide 01/22/2016 8:14 am PST Comments WDAF via WDAF: KANSAS CITY, Mo. -- (WDAF) -- A South Kansas City triple homicide case takes an interesting turn after the key witness marries the man accused of the crime. The development creates a legal loophole that could make things a whole lot tougher for the prosecution, as Missouri law protects spouses from having to testify against each other. Prosecutors have charged 23-year-old Joseph Nelson with three counts of first-degree murder and burglary. FULL STORY: Marriage of suspect to witness may complicate prosecution of triple homicide - WDAF Waiting for your permission to load facebook comments.