The family of a Marine killed in a vicious insider attack in Afghanistan is now suing the Marine Corps, alleging top brass covered up the details of the incident. 

Afghan Teen Murders 3 U.S. Marines, Gets 7.5-Year Sentence

Lance Cpl. Greg Buckley Jr., 21, was killed along with two of his comrades in 2012 when an Afghan teen opened fire in a gym on the base.

The attacker, Ainuddin Khudairaham, was working for the Afghan police at the time. 

Greg Buckley Sr. spoke out over the summer after Khudairaham received only a 7.5-year sentence for the triple murder because he was tried as a minor in an Afghan court.

He said the family repeatedly sought information about the case, but the Corps refused to give them any answers. 

Buckley and his attorney, Michael Bowe, sat down with Brian Kilmeade this morning and he said the military has given him "one lie after another."

Bowe said initial medical tests determined that the attacker was not a minor, but then the teen was suddenly tried in court as a minor.

He said it was an "abject failure" by the Marines to keep a Gold Star family informed. 

Buckley and Bowe pointed to questions about a notorious Afghan police chief, Sarwar Jan, who was reportedly allowed to operate from the compound despite concerns from a Marine major who had previously expelled Jan from a different base.

"They left him on the base and his tea boy is the one he gave an AK-47 to that went into the gym and executed my son and two other Marines," said Buckley. 

There are disturbing allegations about Jan's contact with young boys, drug dealing and ties to the Taliban. 

"They had a police chief there who was notorious for being corrupt, for extorting the populous, for collaborating with the Taliban ... and keeping young boys as sex slaves. Despite knowledge of that, they allowed him on this base. They forced these young Marines, including Greg Jr., to work with them, to live in the same quarters as them.  ... They don't want that to get out," said Bowe, alleging that the Marines ignored the warning about Jan that came just 17 days before the attack. 

The Marine Corps has not commented on the lawsuit.

Watch the full interview above. 

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