Billionaire Ray Dalio’s Son Killed in Car Accident: ‘My Family and I are Mourning’ (Financial News) Billionaire hedge fund investor Ray Dalio has tweeted about the death of his 42-year-old son, Devon Dalio, killed in a car accident earlier this week. Devon Dalio was driving when his car crashed into a Verizon store in Greenwich, Connecticut, on Thursday, according to the Connecticut Post newspaper. Dalio tweeted: “It is with great pain that…