A 66-year-old New Castle man accused of spending more than a year calling for violence against Supreme Court justices and federal immigration officers is now behind bars on federal firearms charges after investigators searched his home and seized three guns. Gregory Wierzbicki made his first court appearance Wednesday, where a judge ordered him held pending a detention hearing next week.
Federal prosecutors charged Wierzbicki with a firearms-related offense, according to the U.S. Department of Justice. The charge stems from a 2006 felony burglary conviction that legally bars him from owning guns or ammunition. As reported by 6abc Philadelphia, officials say Wierzbicki posted on Bluesky and Substack describing a desire to surveil justices to learn their routes and give them a scare, and referenced a guillotine and forming militias in other posts.
Months of Posts Preceded the Raid
Wierzbicki's social media activity included threats targeting Supreme Court justices and U.S. Immigration and Customs Enforcement officers from April 2025 through last month. Investigators executed a search warrant at Wierzbicki's New Castle residence on Wednesday, with the FBI Baltimore Joint Terrorism Task Force involved, per the Justice Department.
Agents recovered three firearms from the home during that search: a 12-gauge shotgun and two .22-caliber long rifles, the department's statement notes. Wierzbicki appeared Wednesday before U.S. Magistrate Judge Christopher J. Burke, who ordered him temporarily detained ahead of a formal detention hearing set for Monday, October 19.
A Case Built on a Firearms Charge, Not a Threat Charge
Notably, the criminal complaint against Wierzbicki centers on the firearms violation rather than a standalone threats charge, even though the investigation was driven by the violent social media posts. Assistant U.S. Attorney Kevin P. Pierce is leading the prosecution under Delaware U.S. Attorney Benjamin L. Wallace, according to the Justice Department.
Part of a Broader Spike in Threats to Judges
The Delaware case lands amid a documented nationwide increase in threats against the federal judiciary. The U.S. Marshals Service tracks protective investigations into threats against federal judges. A Response Technologies compilation counted 564 threats against 396 federal judges in fiscal year 2025. Separately, the Brennan Center for Justice found that security incidents classified as significant concern involving federal judges rose 57% in fiscal year 2025 and remained on pace for further increases this year.
In response, the federal judiciary launched a program to strip judges' personal information from public websites and data brokers. The Administrative Office of the U.S. Courts reports that roughly 80% of sitting federal judges had enrolled in the Personally Identifiable Information Reduction and Redaction Program by late 2025. The Wierzbicki case is one of several recent prosecutions nationwide tied to online threats against judicial officers, including a Howell man charged over threats to a Detroit judge earlier this month.
