If you or someone you know is having thoughts of suicide, please contact the National Suicide Prevention Lifeline at 988.

The brother of a young Marine killed during the U.S. withdrawal from Afghanistan reportedly died by suicide a year later during a recent memorial service for the fallen service member.

Lance Cpl. Kareem Nikoui, 20, from Norco, California, was one of 13 American troops killed on Aug. 26, 2021, when a suicide bomber detonated an explosive outside the Kabul airport as crowds of Americans and Afghan allies sought to flee Taliban fighters taking over control of the capital city.

Nearly a year later, Nikoui’s older brother, 28-year-old Dakota Halverson, died on Aug. 9, a press release from the Riverside County Sheriff’s Department in California confirmed, though offering few details.

"The older brother of one of the 13 KIA in Kabul recently killed himself at his little brother’s memorial," Rep. Mike Waltz, R-Fla., tweeted on Saturday, replying to a tweet by Townhall reporter Julio Rosas. "Please pray for his family. There MUST be accountability for this continued carnage."

FATHER OF SLAIN MARINE SPEAKS OUT ON ‘CHAOTIC’ SITUATION IN AFGHANISTAN 

Kareem Nikoui funeral

Shana Chappell, mom of slain Marine Lance Cpl. Kareem Nikoui, is embraced during a celebration of life service for him at Harvest Christian Fellowship Church, Riverside, California, on Sept. 18, 2021. (Cindy Yamanaka/MediaNews Group/The Riverside Press-Enterprise via Getty Images)

Rosas shared a link to a GoFundMe page, writing that "Shana Chappell, who lost her son LCpl. Kareem Nikoui in the attack during the Afghanistan evacuation last year, announced her son Dakota died." Rosas’ tweet included the hashtag "#SuicideAwareness." 

"Dakota Halverson was a loving son, brother and friend," Chappell wrote on GoFundMe. "Losing his brother nearly one year ago has proven too difficult to bear. Any donations for his burial and services would be greatly appreciated as he wanted to be buried next to his brother Kareem, who was killed August 26th, 2021, while serving his country. His family and I want to honor his wishes."

Marine Lance Cpt. Kareem Grant Nikoui casket carried by fellow soldiers

A military honor guard carries the flag-draped casket of Marine Lance Cpl. Kareem Grant Nikoui at Harvest Christian Fellowship Church on Sept. 18, 2021, in Riverside, California. (Apu Gomes/AFP via Getty Images)

As of midday Sunday, the fundraiser reached more than $18,600 of its listed $20,000 goal.

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Chappell and the fallen Marine’s father, Steve Nikoui, have been vocal critics of President Biden’s principal military officer, Chairman of the Joint Chiefs of Staff Gen. Mark A. Milley, regarding the chaotic withdrawal from Afghanistan last August following a 20-year conflict.