it's been ten months since the murder of dan markel and his ex-wife wendi adelson and their two kids moved to trendy, tropical south florida. wendi has started a new chapter in her life. enrolling in a creative writing class. >> ten months ago someone killed the father of my children. >> reporter: listen to this podcast recorded for the class as wendi, in a deadpan delivery, first describes the demise of her marriage and then her ex. >> first we got divorced then he got murdered. in casual conversations i don't know whether to call him my ex-late spouse or my late ex-spouse. except that late ex-spouse sounds like latex spouse. >> reporter: wendi may be talking about dan markel's death but his grieving parents have never spoken publicly. they asked their attorney, orin snyder, to talk to "20/20" on their behalf. >> how important is it for them for authorities to find markel's killer? >> well, i would say it's impossible for them to move on until the killers and all those responsible for this brutal murder are held accountable. >> reporter: with the markels fully behind them, the polic