Ryan Wesley Routh, a convicted felon who authorities say drove from North Carolina to Florida with a plan to kill Donald Trump, pleaded not guilty Monday to attempting to assassinate the former president while he was playing golf in mid-September at his club in West Palm Beach.

Routh, 58, is accused of setting up a “sniper’s nest” in the bushes surrounding the golf course after traveling with a semiautomatic rifle in mid-August to carry out the attempted execution of the former president at Trump International Golf Club on Sept. 15, according to federal court records.

The suspect fled from the scene when a Secret Service agent fired at him after spotting his rifle poking through a fence, but he left the weapon behind with his fingerprints on the electrical tape attached to a scope, according to the FBI. Thanks to a tip from an eyewitness, Routh was later arrested after being stopped while driving north on Interstate 95.

Routh, who was ordered detained by a magistrate judge in West Palm Beach federal court on Sept. 23, was arraigned on several charges in an indictment brought the following day by a Miami federal grand jury. The indictment charges Routh with attempted assassination of a major presidential candidate, possessing a firearm in furtherance of a crime of violence, assaulting a federal officer, being a felon in possession of a firearm and ammunition, and possession of a firearm with an obliterated serial number.

Routh entered his not guilty plea on Monday before Magistrate Judge Bruce Reinhart. The magistrate judge read the indictment’s five charges and asked Routh if he understood them.

“Yes, Your Honor,” said Routh, who was wearing a khaki inmate uniform, with his wrists and ankles cuffed.

His assistant federal public defender, Kristy Militello, entered his not guilty plea and asked for a trial by jury, which was granted. Now, Assistant U.S. Attorney Mark Dispoto will begin turning over evidence to the defense. No trial date has been set. Under the federal speedy trial law, Routh could face trial within 70 days of his arraignment – but that is unlikely.

If convicted of the attempted assassination, Routh, a former North Carolina resident who was living in Hawaii and working in construction before the incident, faces up to life in prison. He is being held at the Federal Detention Center in Miami as he awaits trial.

“Violence targeting public officials endangers everything our country stands for, and the Department of Justice will use every available tool to hold Ryan Routh accountable for the attempted assassination of former President Trump charged in the indictment,” Attorney General Merrick B. Garland said in a statement issued last Tuesday.

Routh was initially arrested on charges of illegally possessing a firearm as a convicted felon and carrying a weapon with an obliterated serial number. Trump, who is facing Vice President Kamala Harris in the presidential election on Nov. 5, had issued a statement last Monday questioning the seriousness of those initial charges.

The Routh case was randomly assigned to U.S. District Judge Aileen Cannon, who was appointed by Trump to the federal bench. Cannon, who is based in the Fort Pierce federal courthouse, recently dismissed the U.S. government’s classified documents case against the former president, saying that the special counsel who brought it was not legally appointed. The Justice Department is appealing her decision.

According to court records, when Routh fled the perimeter of the golf club after the Secret Service agent shot at him, a witness saw the suspect running across the road from the golf course and getting into a black Nissan Xterra. The witness reported the information to law enforcement, and Routh was later stopped while heading northbound on I-95.

According to an FBI criminal complaint and affidavit, FBI agents found an SKS semiautomatic rifle with an attached scope and an extended magazine where Routh had been hiding by a fence on the perimeter of the golf course. The serial number on the rifle was obliterated and unreadable. Hanging from the fence was a backpack and a reusable shopping bag – each containing a plate capable of stopping small arms fire, according to prosecutors.

FBI agents later found Routh’s documents containing a handwritten list of dates in August, September, and October and venues where the former president had appeared or was expected to be present. Records for two of the cell phones found in the Nissan Xterra showed that on multiple days and times from Aug. 18 to Sept. 15, Routh’s mobile phone accessed cell towers located near Trump International and the former president’s residence at Mar-a-Lago.

According to prosecutors, a civilian witness in North Carolina contacted law enforcement stating that Routh had dropped off a box at his residence several months ago. The box included a handwritten letter from Routh addressed “Dear World,” which stated, among other things, “This was an assassination attempt on Donald Trump but I am so sorry I failed you.”

According to court records, Routh was convicted of felonies in North Carolina in December 2002 and March 2010. The FBI is investigating the case, with assistance from the Bureau of Alcohol, Tobacco, Firearms and Explosives and the Secret Service.

The U.S. Attorney’s Office for the Southern District of Florida and National Security Division’s Counterterrorism Section are prosecuting the case.