Bjornholt appeared in Maricopa County Superior Court on one count of making a terroristic threat. Prosecutors allege he told another person in late September that he was planning an attack involving bombs, followed by an accomplice shooting people. They said he referred to the bomb-making manual “The Anarchist Cookbook” as his “Bible.”

Investigators found three firearms and a copy of the book during a search of Bjornholt’s home, prosecutors said. Authorities did not report finding bomb-making materials, and officials had not identified which sites were allegedly targeted during Saturday’s court appearance. Court paperwork was expected to be filed Monday.

Prosecutors requested a $500,000 cash bond, citing public-safety concerns, Bjornholt’s criminal history and past failures to appear in court. The judge noted that a bond at that level is generally reserved for homicide cases at an initial appearance hearing and instead ordered a $100,000 secured bond.

If released, Bjornholt must comply with pretrial supervision and electronic monitoring. The judge also ordered him to avoid contact with victims and witnesses, possess no weapons, abstain from alcohol and nonprescription drugs, and not drive without a valid license.

Bjornholt’s defense attorney disputed the allegations and argued he was neither a danger to the community nor a flight risk. The lawyer said the accusation depended on a former friend who had been asked to leave Bjornholt’s home days earlier, and said Bjornholt had attended every hearing in a separate murder case that was dismissed after he accepted a plea deal.

The attorney also said the firearms were legally possessed after Bjornholt’s rights were restored following an earlier felony conviction. He said investigators found no bomb-making materials.

The charge remains an allegation; the court has not determined Bjornholt’s guilt.