Kardashian tweeted news of her friend's death, writing, "💔 when does it stop? RIP Jamie Sangouthai."
Kardashian's best friend Malika Haqq also mourned the loss of their friend by sharing a photo of herself with the reality star, Odom and Sangouthai, which she captioned:
"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."
Kardashian fans may remember Sangouthai from a 2009 episode of the family's reality series, as well as for his regular appearances on the spinoff series "Khloe & Lamar," which ran from 2011 to 2012.
According to E! News, Odom had been best friends with Sangouthai since high school, and recruited him to be one of his best men at his wedding to Kardashian in September 2009.
Sangouthai's death marks the second friend Kardashian has lost in recent months. In May, rapper Chinx, whose real name is Lionel Pickens, died in a drive-by shooting. The reality star, who knew him through her ex-boyfriend French Montana, also mourned him with a post on Instagram.