A crumbling marriage and secrecy about finances led Lewis Bennett to murder his wife, Isabella Hellmann, at sea and then stage her death to look like an accident.

Nancy Grace looks at the evidence against Bennett with a panel including forensic psychiatrist Dr. Daniel Bober, forensics expert Joseph Scott Morgan — author of “Blood Beneath My Feet,” Atlanta lawyer and juvenile judge Ashley Willcott, and Crime Stories reporter John Lemley.

How do you protect your children from predators? Join Nancy Grace and a team of world-class experts for the online course ‘Justice Nation: Crime Stops Here’.

BREAKING: Husband of Isabella Hellmann, new mother lost at sea for several months, charged with murder

Nancy also visits with songwriter Greer Baxter and Broadway star Mandy Gonzalez about their musical collaboration “Line in the Sand,” an inspiring song on the new album “Fandango at the Wall.”

“Crime Stories with Nancy Grace” is also a national radio show heard on SiriusXM channel 111 airing for two hours daily starting at 12 p.m. ET and around the country on local radio stations. You can also subscribe and download the daily podcasts at Apple Podcasts and Google Play.

Join Nancy Grace for her new video series new online video series designed to help you protect what you love most – your children.

[Feature Photo: Isabella Hellmann/Facebook]