FORT PIERCE, Fla. (AP) — A man charged with trying to assassinate President Donald Trump last year in South Florida is set to represent himself during a pretrial conference on Tuesday, as final preparations are made for trial.

Barring any delays, jury selection is scheduled to begin Monday in Fort Pierce federal court for the case against Ryan Routh. U.S. District Judge Aileen Cannon signed off on Routh’s request to represent himself in July but said court-appointed attorneys need to remain as standby counsel.

The trial will begin nearly a year after prosecutors say a U.S. Secret Service agent thwarted Routh’s attempt to shoot Trump as he played golf. Routh, 59, has pleaded not guilty to charges of attempting to assassinate a major presidential candidate, assaulting a federal officer and several firearm violations.

Prosecutors have said Routh methodically plotted to kill Trump for weeks before aiming a rifle through the shrubbery as Trump played golf on Sept. 15, 2024, at his West Palm Beach country club. A Secret Service agent spotted Routh before Trump came into view. Officials said Routh aimed his rifle at the agent, who opened fire, causing Routh to drop his weapon and flee without firing a shot.

Law enforcement obtained help from a witness who prosecutors said informed officers that he saw a person fleeing. The witness was then flown in a police helicopter to a nearby interstate where Routh was arrested, and the witnesses confirmed it was the person he had seen, prosecutors have said.

Routh was a North Carolina construction worker who in recent years had moved to Hawaii. A self-styled mercenary leader, Routh spoke out to anyone who would listen about his dangerous, sometimes violent plans to insert himself into conflicts around the world, witnesses have told The Associated Press.

In the early days of the war in Ukraine, Routh tried to recruit soldiers from Afghanistan, Moldova and Taiwan to fight the Russians. In his native Greensboro, North Carolina, he had a 2002 arrest for eluding a traffic stop and barricading himself from officers with a fully automatic machine gun and a “weapon of mass destruction,” which turned out to be an explosive with a 10-inch-long fuse.

In 2010, police searched a warehouse Routh owned and found more than 100 stolen items, from power tools and building supplies to kayaks and spa tubs. In both felony cases, judges gave Routh either probation or a suspended sentence.

In addition to the federal charges, Routh also has pleaded not guilty to state charges of terrorism and attempted murder.