Tech company CEO, wife, children murdered in mansion fire; was his own brothers' jealousy motive for murder?

Published: Nov. 30, 2018, 6:03 p.m.

b'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.\\xa0Paul Caneiro, 51, is also charged with setting fire to his and his brother\'s home. Nancy Grace explores the case with forensics expert\\xa0Joseph Scott Morgan -- author of "Blood Beneath My Feet,"\\xa0North Carolina family and divorce lawyer\\xa0Kathleen Murphy, and Crime Stories reporter\\xa0Robyn Walensky.'