The November 2009 shooting left 13 dead and 29 injured. (File)

WASHINGTON (July 13, 2012)—U.S. Sen. John Cornyn, R-Texas, asked the FBI Friday to release an independent review of the agency’s actions before and after the November 2009 Fort Hood shooting rampage.

In a letter to FBI Director Robert Mueller, Cornyn called the report “a matter of tremendous public importance” and said, “The key findings and recommendations of this report must be made public, so we can glean any and all lessons from this incident.”

“The American people and specifically the Fort Hood community in Texas have the right to know,” Cornyn wrote.

Army psychiatrist Maj. Nidal Hasan is charged with 13 counts of premeditated murder and 32 counts of attempted premeditated murder in the Nov. 5, 2009 rampage at Fort Hood’s Soldier Readiness Center that left 13 dead and 29 injured.

His court-martial is scheduled to begin on Aug. 20.

He could be sentenced to death if he’s convicted.

Hasan’s attorneys are asking military judge Col. Gregory Gross for access to the report, but a spokesman said Friday Gross won’t rule on the request until the reported is complete and has been reviewed.

Former FBI and CIA Director William Webster led the independent review and said a report would be delivered to Mueller no later than Friday.

Cornyn cites a Fox News report that says the more than 150-page report includes 18 recommendations for changes in FBI policies, protocols and training.

The review was focused on how the FBI managed and acted on counterrorism intelligence before and after the deadly shooting including information about Hasan’s contacts with American-born Yemeni cleric Anwar al-Awlaki, who was killed in a U.S.-led operation in September 2011.

Al-Awlaki was tied not only to the Fort hood massacre, but also too the hijackers in the 9/11 attack on the World Trade Center.