Khloe Kardashian is mourning the loss of Lamar Odom's best friend.
The 'Keeping Up with the Kardashians' star is devastated after Jamie Sangouthai - who was one of the basketball star's best men at their 2009 wedding - passed away yesterday (14.06.15) at the age of just 37 following a reported heroin overdose.
Alongside a broken heart emoji, she tweeted yesterday afternoon: "When does it stop? RIP Jamie Sangouthai."
Khloe's estranged husband is said to be "beside himself" by the loss of his former school friend and occasional business partner.
A source told Us Weekly magazine: "Lamar is beside himself. This is the worst tragedy."
Another source added: "This is so sad. They were best friends, like brothers. Lamar is going to take this really hard."
While Lamar has yet to comment on the news, 30-year-old Khloe's close friend Malika Haqq is also saddened by their pal's passing.
Alongside a photo of herself, Jamie, Khloe and Lamar, she wrote on Instagram: "Thru good and bad times life shows us every spirit matters and leaves a print on the hearts of others after they have passed... RIP Jamie Sangouthai #GodHelpUsAll.(sic)
Jamie was rushed to a Los Angeles hospital for treatment after emergency services were called on Sunday, but died at the medical facility.