A decorated former Green Beret who has been charged in the death of a suspected Taliban bomber wants the charges dropped, because an investigator in the case is reportedly facing charges of "stolen valor."

In a memo his lawyer, Phil Stackhouse, filed Wednesday with the U.S. Army Special Operations Command (USASOC), Maj. Matt Golsteyn demanded his murder case go straight to trial or that the charges be dismissed, waiving his right to a preliminary hearing in military court.

Stackhouse said on "The Story with Martha MacCallum" Thursday night that an anonymous tip lead them to investigate Army Sgt. 1st Class Mark Delacruz, a criminal investigation command agent assigned to Golsteyn's case.

He said that Delacruz "was wearing awards ... doing it for personal gain."

Stackhouse is claiming that Delacruz has been charged with four specifications of "intent to deceive" -- that is, earning a Purple Heart and falsely wearing a Combat Action Badge and other awards.

Stackhouse said that his alleged deception made his actions suspicious. "You have to give pause" about his believability and integrity.

Stackhouse alleges in the memo to USASOC that Delacruz "held himself out as a Special Forces soldier, infantryman, sniper, and bragged about killing people in combat."

USASOC didn't reply to Fox News' request for comment. The memo was first reported by NBC News.

Golsteyn on Sunday appeared on "Fox & Friends," where he vigorously disputed the charges.

"Over these years, what the U.S. Army seems to be intent on doing is characterizing an ambush as murder. Those routine combat actions are now being characterized as murder," Golsteyn told "Fox & Friends."

The Army previously has said Golsteyn was charged with killing the Afghan during Golsteyn's 2010 deployment to Afghanistan. Golsteyn was leading a team of Army Special Forces troops at the time, and believed that the bombmaker was responsible for an explosion that killed two Marines.

The Golsteyn case has bounced around since 2011, when he told the CIA in a job interview that he'd shot and killed the man.

President Trump tweeted in December that "at the request of many," he will examine the Golsteyn allegations. The president tweeted that Golsteyn is a "U.S. Military hero" who could face the death penalty "from our own government."