Lamar Odom is mourning the death of another friend.

The basketball player - who is separated from wife Khloe Kardashian - is said to be ''distraught'' following the passing of producer and writer Bobby Heyward, who, died on Saturday (20.06.15) at the age of 30 - just a week after his pal Jamie Sangouthai, 37, died from a bacterial skin infection caused by intravenous drug abuse.

Tragically, Heyward's final Instagram post was a tribute to Sangouthai.

He had captioned the photo: ''#RIP To my big brother Jamie who always brought light into any room he walked into and laughter as well at all times J you will always be missed. Family for life. #BandOfBrothers #tbt (sic)''

The L.A. County Coroners office has confirmed that Heyward passed away, but did not clarify the cause of death.

Bobby was also close to Khloe, who reached out to Lamar in the wake of his friend Jamie's death.

The news comes as the reality TV star was consoling her estranged husband after Jamie's death and was reportedly too upset to go to her niece North West's 2nd birthday celebrations in Disneyland.

She posted on Twitter last week: ''When does it stop? RIP Jamie Sangouthai.''

Meanwhile, Lamar had begun a 'Go Fund Me' campaign to raise money for Jamie to be brought home for a proper burial, with a target of $15,000 but has currently raised just $18,135.