The brother of a businessman found shot to death at his New Jersey mansion has been charged with four murders, including the deaths of his sister-in-law, niece and nephew. Paul Caneiro, 51, is also charged with setting fire to his and his brother’s home.

Nancy Grace explores the case with forensics expert Joseph Scott Morgan — author of “Blood Beneath My Feet,” North Carolina family and divorce lawyer Kathleen Murphy, and Crime Stories reporter Robyn Walensky.

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Breaking: Suspect charged with MURDER in mansion fire, accused of killing brother’s entire family: Police

“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.

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[Feature Photo: Keith Caneiro and family/Facebook]