The Pentagon said Thursday that it plans to livestream the firing squad execution of former Army Maj. Nidal Hasan, who was sentenced to death for the 2009 mass shooting at Fort Hood. The execution is scheduled for later this year.

Hasan killed 13 people and injured 32 others during the attack at the U.S. Army post. His scheduled execution would be the U.S. military’s first execution by firing squad since World War II.

The Pentagon announced the livestream plan after War Secretary Pete Hegseth told reporters earlier Thursday that the execution would be open to the public. Hegseth said people should be able to watch because they needed to understand that such acts carry serious consequences.

Hasan is scheduled to face the firing squad on Dec. 3 at Fort Hood. The execution is set for 1 p.m., the exact time that the 2009 shooting began at the same Army post.

President Donald Trump approved the execution last week. If the execution proceeds, it will mark the military’s first use of a firing squad for an execution since World War II.

The last military execution occurred in April 1961, when Army Pvt. John A. Bennett was hanged at Fort Leavenworth, Kansas. Hasan’s case therefore would also become the first military execution of any kind in more than six decades.

Hasan’s attorneys could still attempt to delay the execution by pursuing challenges through the courts. The Pentagon’s public livestream plan also raises questions about how the Army intends to follow its existing guidelines for executions.

Those guidelines state, “No person under the age of 18 shall witness the execution.” The source did not specify how the Army or Pentagon would prevent people younger than 18 from viewing a publicly available livestream.

The underlying attack occurred in 2009, when Hasan opened fire inside a crowded waiting room at Fort Hood. Troops inside the room were receiving their final medical checkups before deployments to Iraq and Afghanistan.

Hasan opposed U.S. military operations in countries with Muslim majorities. He became paralyzed after civilian police officers responding to the shooting shot him.

In 2013, a military jury convicted Hasan of premeditated murder. The jury consisted of 13 members, and Hasan was sentenced to death following the conviction.

Hasan is currently one of four people on the military’s death row, according to the Death Penalty Information Center. His execution date now places his case on a timetable, although possible court challenges could still seek to interrupt it.

Hegseth was also asked whether Hasan had made a final plea to the Trump administration. The War Secretary responded, “Don’t care. We’ll see him on Dec. 3.”

The Pentagon’s decision means the planned execution would not simply be open to a limited group of observers. Under the announced plan, viewers would be able to watch remotely as the military carries out the firing squad sentence.

The timing and location directly mirror the circumstances of the mass shooting. Hasan is scheduled to be executed where the attack occurred, and the firing squad is set to act at the same hour the shooting began.

The announcement puts the military’s planned return to executions before a potentially broad public audience. It also leaves Hasan’s attorneys with time to seek a delay before Dec. 3 while the Army confronts questions about access to the livestream.