Twenty Years – But Who Failed Those Marines?

Security guard watching inmates behind jail bars — Photo: LightField Studios / Shutterstock

A federal judge sentenced an Afghan man to 20 years in prison for helping the ISIS-K terror network behind the 2021 Kabul airport bombing that killed 13 U.S. service members.

Story Snapshot

Mohammad Sharifullah was sentenced to 20 years for aiding the Islamic State of Iraq and ash-Sham-Khorasan Province, the group behind the Abbey Gate attack.
A federal jury convicted him in April 2026 of a nine-year conspiracy to support the terror group.
He admitted scouting a route near the airport but denied knowing an attack was coming.
A military review already found the bombing was not preventable at the tactical level.
Pentagon documents reportedly show officials knew ISIS-K fighters were staging near the airport before the blast.

Twenty Years For Aiding A Deadly Terror Network

Sharifullah, an Afghan national, was sentenced to 20 years in federal prison on September 16, 2026, for helping the terrorist organization tied to the Abbey Gate suicide bombing. A federal jury convicted him in April of that year of joining a nine-year conspiracy to give material support to ISIS-K, the Islamic State’s Afghanistan branch. The Justice Department first arrested him in March 2025, calling him a member of ISIS-K charged in the killing of U.S. troops.

The August 26, 2021, attack killed 11 Marines, one Army soldier, one Navy corpsman, and roughly 170 Afghan civilians during the chaotic U.S. withdrawal from Kabul. A lone suicide bomber detonated an explosive device at Abbey Gate at about 5:36 p.m. local time, according to U.S. Central Command, the military command that reviewed the attack. The case became one of the most closely watched terrorism prosecutions tied to the withdrawal.

What Sharifullah Admitted—And What He Denied

During interviews with Federal Bureau of Investigation (FBI) agents after waiving his rights, Sharifullah admitted he scouted a road near the airport, checked for checkpoints, and told other ISIS-K members the route looked clear for an attacker. He said he had done “a lot of other things” for the terror group, according to trial testimony. But his lawyers argued he had no role in the bombing itself and said prosecutors got the wrong man.

Recorded statements played for the jury during his eight-day trial showed Sharifullah confessing to reconnaissance work while denying he knew the attack would happen. The New York Times reported the jury reached a mixed verdict, convicting him on the broader conspiracy charge without necessarily finding he had advance knowledge of the exact bombing plan. That gap between organizational support and specific foreknowledge remains a key unresolved question in the public record.

Military Review Says Attack Was Not Preventable

U.S. Central Command’s supplemental review, released in 2024, reaffirmed that the Abbey Gate attack “was not preventable at the tactical level without degrading the mission” to evacuate as many people as possible. The review also found the suicide bomber was never identified in the crowd beforehand, leaving no chance for troops to stop him before the blast. That finding stands in tension with newer claims that intelligence failures made the attack avoidable.

NewsNation reported that Pentagon documents and sworn statements show intelligence officers at the Kabul airport knew ISIS-K fighters were staging in a hotel just two to three kilometers away, and that officials believed an attack was imminent. Gold Star families have pushed for more answers, arguing the government owes them full transparency about what was known before their loved ones died.

Gaps Between Legal Guilt And Full Accountability

The public record does not show the classified documents the Pentagon reportedly recovered, nor does it fully explain who received warnings about ISIS-K staging or whether any specific order could have stopped the bombing. A magistrate judge had earlier found probable cause to detain Sharifullah as a co-conspirator, citing his alleged Pakistan-linked network. Court filings and trial coverage describe a lengthy witness list, but full transcripts remain outside the public domain.

This case sits at the center of a broader tension many Americans feel toward Washington: a criminal conviction proves organizational support for terrorism, but it does not by itself answer whether the government’s own intelligence failures made a preventable tragedy worse. Families and lawmakers on both sides continue pressing for the withheld records that could close that gap.