The alleged gunman accused of trying to breach a Washington ballroom in a failed attempt to assassinate President Donald Trump last weekend will remain in custody for the time being after a court appearance Thursday.

Cole Allen, the California man who authorities say rushed toward the White House Correspondents’ Association dinner Saturday night armed with guns and knives, ceded an opportunity for a detention hearing for the time being, a defense attorney of his said in court Thursday.

The detention hearing could have provided Allen’s legal team with a chance to argue in court that he be released from custody while the high-profile case proceeds.

Despite the announcement from the defense team, federal prosecutor Charles Jones asked to present information in court. But Magistrate Judge Moxila Upadhyaya denied that request, saying it would be an “inefficient way” of moving forward and said the ask from the Justice Department was “truly unprecedented.”

Authorities have said Allen ran past a security checkpoint at the Washington Hilton on Saturday while armed with guns and knives, only to be apprehended mere feet from the ballroom where Trump, Cabinet officials and journalists had gathered for the dinner.

Authorities said he was armed with a 12-gauge pump-action shotgun, a .38-caliber pistol, two knives and four daggers and “enough ammunition to take dozens of lives,” prosecutors wrote in a court filing.

“Had the defendant successfully made it into the ballroom, he not only could have killed or injured dozens of people, but he could have destabilized the entire federal government, given the number of high-ranking government officials present,” prosecutors wrote in a memorandum urging the court to keep Allen detained pending trial.

Allen faces three criminal charges in the incident. He was charged with the attempted assassination of the president, along with two firearm-related counts.

Allen’s defense team, in a filing ahead of the court appearance Thursday, requested he be released pending trial. Allen has no prior criminal history and no prior arrests, the filing said.

“The Court here should consider Mr. Allen’s lack of criminal history as a positive factor supporting the conclusion that Mr. Allen” would follow the court’s conditions, the filing said.

The defense attorneys also said he is a graduate of the California Institute of Technology, later received his master’s degree in computer science at another university and was employed as a tutor.

They also said he attends his church and is “an active participant in his religious community.”

Authorities say Allen traveled by train from California to Chicago, and then to Washington, and had checked into the hotel on Friday, a day before the dinner.

Allen, according to a federal affidavit released earlier this week, approached the security checkpoint at around 8:40 p.m. and ran through a magnetometer holding a long gun.

Secret Service personnel assigned to the checkpoint heard a loud gunshot at that time, and an officer was shot once in the chest but was wearing a ballistic vest, the affidavit said.

The officer fired multiple times at Allen, who was not shot but instead fell to the ground and was arrested, according to the affidavit. The document did not specify if it was Cole who fired at the officer.

Cole, according to the affidavit, also sent an email to family members shortly before he rushed past the checkpoint, an email that included a text file entitled: “Apology and Explanation.”