J.R Ridinger's cause of death has been revealed following his shock passing aged just 63.READ: Country music fans in mourning after Luke Bell dies aged 32The Miami businessman – who was friends with the likes of Jennifer Lopez, Victoria Beckham, and Khloe Kardashian – died on Wednesday after suffering a pulmonary embolism on a yacht in Croatia, his wife Loren confirmed.WATCH: Jennifer Lopez and Ben Affleck marry in Las Vegas"While I am unable to speak and I am in shock," Loren wrote on Facebook. "You should know I am broken.