The former Army psychiatrist convicted in the 2009 Fort Hood shooting is due to face a firing squad on December 3, though legal challenges could delay the execution.

A Pentagon official confirmed to The Associated Press that the military execution will be livestreamed. The announcement followed Defense Secretary Pete Hegseth’s remarks that the procedure would be public. The department has not yet released details of the broadcast.

President Donald Trump approved the execution, and the Army scheduled it for December 3 at Fort Hood, Texas. If carried out, it would be the first U.S. military execution since 1961. The last firing-squad execution by the U.S. military took place in 1945.

Hasan, a former Army major and psychiatrist, opened fire at Fort Hood in November 2009, killing 13 people and injuring 32. A military court convicted him of premeditated murder and attempted murder in 2013 and sentenced him to death.

Eugene R. Fidell, a military justice expert, told La Nación that a habeas corpus petition in federal civilian court could delay the execution for months or even years. The Associated Press also reported that legal experts have questioned the process used to set the date and notify Hasan.