Lamar Odom and Khloe Kardashian's friend, Jamie Sangouthai, dies at 37

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Jamie Sangouthai, Friend of Khloe Kardashian and Lamar Odom, Dead at 37

It's a sad day for Lamar Odom and Khloe Kardashian, to say the least.

Lamar's close friend, Jamie Sangouthai -- who viewers will remember from his frequent appearances on their E! reality show Khloe & Lamar-- has passed away. He was 37 years old.

Jamie reportedly died from a drug overdose, according to Us Weekly.

"When does it stop? RIP Jamie Sangouthai," Khloe tweeted on Sunday.

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"Life doesn't get easier but I promise you that life will make you stronger," she also Instagrammed alongside a picture of a black-and-white cartoon photo of a woman crying.

Khloe's best friend, Malika Haqq, also took to Instagram to mourn Jamie's death, posting a throwback photo of the two of them alongside the former couple. "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," she wrote.

Jamie was close friends with Lamar, 35, since high school. He served as one of the NBA star's best men during his 2009 wedding to Khloe.

"Lamar is beside himself. This is the worst tragedy," a source tells Us. "They were best friends, like brothers."

"Lamar is going to take this really hard," another source adds.

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Khloe Kardashian and Lamar Odom, friend Jamie's death
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Lamar Odom and Khloe Kardashian's friend, Jamie Sangouthai, dies at 37
LOS ANGELES, CA - SEPTEMBER 22: TV personality Jamie Sangouthai attends the 3rd annual Get Lucky for Lupus LA event at Peterson Automotive Museum on September 22, 2011 in Los Angeles, California. (Photo by David Livingston/Getty Images)
HOLLYWOOD, CA - SEPTEMBER 21: Jamie Sangouthai arrives to the 3rd annual Bullets 4 Peace Reloading Life Event at Station Hollywood at W Hollywood Hotel on September 21, 2011 in Hollywood, California. (Photo by Tibrina Hobson/Getty Images)
💔 when does it stop? RIP Jamie Sangouthai
HOLLYWOOD, CA - SEPTEMBER 21: Reality TV star Jamie Sangouthai attends the 3rd annual Bullets 4 Peace reloading life event celebrating the World Peace Day at Station Hollywood at W Hollywood Hotel on September 21, 2011 in Hollywood, California. (Photo by Allen Berezovsky/FilmMagic)
Life doesn't get easier but I promise you that life will make you stronger. 💋
If you haven't heard it yet today... I love you. ❤️ #ShareTheLove
ORANGE, CA - JUNE 07: Lamar Odom and Khloe Kardashian make a personal appearance for 'Unbreakable Bond' at Perfumania on June 7, 2012 in Orange, California. (Photo by Jason LaVeris/FilmMagic)
NEW YORK, NY - JUNE 19: Lamar Odom and Khloe Kardashian are seen at Streets of Manhattan on June 19, 2012 in New York City. (Photo by Alo Ceballos/FilmMagic)
LAS VEGAS, NV - JULY 17: Khloe Kardashian and NBA athlete Lamar Odom are seen arriving at McCarran International Airport on July 17, 2012 in Las Vegas, Nevada. (Photo by Marcel Thomas/FilmMagic)
ORANGE, CA - JUNE 07: Lamar Odom and Khloe Kardashian make a personal appearance for 'Unbreakable Bond' at Perfumania on June 7, 2012 in Orange, California. (Photo by Jason LaVeris/FilmMagic)
ORANGE, CA - JUNE 07: Professional basketball player Lamar Odom and TV personality Khloe Kardashian make an appearance to promote their fragrance, 'Unbreakable Bond,' at Perfumania on June 7, 2012 in Orange, California. (Photo by Imeh Akpanudosen/Getty Images)
Lamar Odom and Khloe Kardashian-Odom pose on arrival for the 19th Annual Race to Erase MS themed 'Glam Rock to Erase MS' in Los Angeles on May 18, 2012. The event benefits the Nancy Davis Foundation for Multiple Sclerosis and the Center Without Walls program which continues to raise funds to provide treatment and ultimately find a cure for MS. AFP PHOTO/Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/GettyImages)
SYDNEY, AUSTRALIA - NOVEMBER 02: Khloe Kardashian Odom and Lamar Odom arrive at the Kardashian Kollection Handbag launch at Hugo's on November 2, 2011 in Sydney, Australia. The Kardashian sisters will make an in-store appearance at David Jones tomorrow. (Photo by Lisa Maree Williams/Getty Images)
DANCING WITH THE STARS - (EXCLUSIVE TO GETTY IMAGES UNTIL 10/31/2011) 'Episode 1306' - The remaining seven couples brought widely entertaining performances to the ballroom floor with explosive dancing and unforgettable songs from some of Broadway's most popular musicals of all time, on 'Dancing with the Stars,' MONDAY, OCTOBER 24 (8:00-10:01 p.m., ET), on the ABC Television Network. (Photo by Adam Taylor/ABC via Getty Images) LAMAR ODOM, KHLOE KARDASHIAN
LAS VEGAS, NV - OCTOBER 22: Lamar Odom and Khloe Krdashian arrive at Kim Kardashian's birthday party at Marquee Nightclun at the Cosmopolitan on October 22, 2011 in Las Vegas, Nevada. (Photo by Denise Truscello/WireImage)
UNIVERSAL CITY, CA - AUGUST 7: Khloe Kardashian and Lamar Odom arrive at Teen Choice 2011 at the Gibson Amphitheatre on August 7, 2011 in Universal City, California. (Photo by Gregg DeGuire/FilmMagic)
UNIVERSAL CITY, CA - AUGUST 07: Professional basketball player Lamar Odom and TV personality Khloe Kardashian arrive at the 2011 Teen Choice Awards held at the Gibson Amphitheatre on August 7, 2011 in Universal City, California. (Photo by Steve Granitz/WireImage)
Lamar Odom and Khloe Kardashian Odom dine at Sugar Factory American Brasserie at Paris Las Vegas on June 17, 2011 in Las Vegas, Nevada. (Photo by Denise Truscello/WireImage)
Lamar Odom and Khloe Kardashian Odom dine at Sugar Factory American Brasserie at Paris Las Vegas on June 17, 2011 in Las Vegas, Nevada.
Khloe Kardashian and Lamar Odom attend the launch for 'Unbreakable' on April 4, 2011 in Hollywood, California.
FILE - In this April 30, 2012 file photo, Khloe Kardashian Odom and Lamar Odom from the show "Keeping Up With The Kardashians" attend an E! Network upfront event at Gotham Hall in New York. After months of speculation, Kardashian is ending her four-year marriage to Odom. The Reality TV star filed for divorce Friday, Dec. 13, 2013, in Los Angeles County Superior Court, citing irreconcilable differences. (AP Photo/Evan Agostini, File)
Khloe Kardashian and Lamar Odom arrive at the Teen Choice Awards on Sunday, Aug. 8, 2010 in Universal City, Calif. (AP Photos/Chris Pizzello)
April 30, 2012 - New York, New York, U.S. - Reality personalities KHLOE KARDASHIAN and LAMAR ODOM attend the E! Upfront 2012 event held at Gotham Hall. (Credit Image: © Nancy Kaszerman/ZUMAPRESS.com)
LOS ANGELES, CA - APRIL 19: Khloe Kardashian and Lamar Odom #7 of the Los Angeles Lakers pose for a photo at the ceremony for the Kia Six Man of the Year Award at the Sheraton Gateway Los Angeles Hotel on April 19, 2011 in Los Angeles, California. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this Photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2011 NBAE (Photo by Andrew D. Bernstein/NBAE via Getty Images)
Lamar Odom and Khloe Kardashian attend the Lakers casino night at Staples Center on April 3, 2011 in Los Angeles, California.
COSTA MESA, CA - MARCH 24: Khloe Kardashian (L) and Lamar Odom (R) sign autographs during the Microsoft Store Opening at South Coast Plaza on March 24, 2011 in Costa Mesa, California. (Photo by Ryan Miller/Getty Images)
COSTA MESA, CA - MARCH 24: Khloe Kardashian (L) and Lamar Odom (R) dance during the Microsoft Store Opening at South Coast Plaza on March 24, 2011 in Costa Mesa, California. (Photo by Ryan Miller/Getty Images)
UNIVERSAL CITY, CA - AUGUST 08: NBA player Lamar Odom and TV personality Khloe Kardashian arrive at the 2010 Teen Choice Awards at Gibson Amphitheatre on August 8, 2010 in Universal City, California. (Photo by Alberto E. Rodriguez/Getty Images)
(EXCLUSIVE, Premium Rates Apply) **Exclusive** Lamar Odom and Khloe Odom attend Casio's Shock the World 2010 event at The Manhattan Center on August 2, 2010 in New York City.
NEW YORK - AUGUST 02: Lamar Odom and Khloe Kardashian attends the Casio 'Shock the World' event at The Manhattan Center on August 2, 2010 in New York City. (Photo by Jason Kempin/Getty Images)
BEVERLY HILLS, CA - SEPTEMBER 22: Lamar Odom and Khloe Kardashian attend NSF And GQ Magazine Join Forces To Stop Puppy Mills Humane Society Benefit on September 22, 2009 in Beverly Hills, California. (Photo by Brian To/FilmMagic)
Khloe Kardashian and Lamar Odom arrives at the Los Angeles premiere of 'Whiteout' at the Mann Village Theatre on September 9, 2009 in Westwood, Los Angeles, California. (Photo by Steve Granitz/WireImage)
BEVERLY HILLS, CA - SEPTEMBER 05: (L-R) Khloe Kardashian and Lamar Odom sighting at BOA restaurant on September 5, 2009 in Beverly Hills, California. (Photo by David Aguilera/BuzzFoto/FilmMagic)
BEVERLY HILLS, CA - SEPTEMBER 05: (L-R) Khloe Kardashian and Lamar Odom sighting at Cafe Med on September 05, 2009 in Beverly Hills, California. (Photo by David Aguilera/BuzzFoto/FilmMagic)
BEVERLY HILLS, CA - SEPTEMBER 03: (L-R) Lamar Odom and Khloe Kardashian sighting at STK restaurant on September 03, 2009 in Beverly Hills, California. (Photo by David Aguilera/BuzzFoto/FilmMagic)
WESTWOOD, LOS ANGELES, CA - SEPTEMBER 09: TV personality Khloe Kardashian and NBA player Lamar Odom arrives on the red carpet of the Los Angeles premiere of 'Whiteout' at the Mann Village Theatre on September 9, 2009 in Westwood, Los Angeles, California. (Photo by Lester Cohen/WireImage)
LOS ANGELES, CA - DECEMBER 10: Khloe Kardashian attends the Hollywood Reporter's Women In Entertainment breakfast at Milk Studios on December 10, 2014 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
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