This particular episode of the Television program Forensic Files is about a man slaying his wife in the Jacksonville area in Florida:

News article about this particular case:

https://www.jacksonville.com/article/20090716/NEWS/801231283

The prosecutor for this particular case was appointed a Judge by the State of Florida in 2016:

https://www.jaxdailyrecord.com/article/john-guy-22-year-prosecutor-begins-circuit-judgeship-tuesday