It's not strictly radio, although it did get a low of radio news coverage at the time.
Netflix has released the doc, "What Jennifer Did," about the bizarre murder of the parents of a Canadian-Vietnamese girl north of Toronto.  It tells the story of a young Canadian woman and her alleged plot to kill her parents. The documentary opens on the alarming 2010 emergency call Pan placed to the police after her mother was fatally shot to death and her father critically injured in their home.
After a lengthy investigation police discovered Jennifer hired hit men to kill her parents who would not let her see her boyfriend who they thought was not good enough for her.
Very well done doc with real footage of the police interrogations.