22-year-old admits bombing California courthouse after law enforcement took away his guns

Nathaniel James McGuire, a 22-year-old from Santa Barbara County, has officially pleaded guilty to charges stemming from his role in detonating an explosive device at a Santa Maria courthouse in 2024. As reported by The Guardian, the incident, which occurred in September 2024, resulted in injuries to three people and caused $35,000 in damages to the facility. The courthouse also had to be closed for several days following the attack.

According to the details outlined in his plea agreement, McGuire reportedly entered the courthouse and threw a backpack containing an explosive device past the security screening area. The bomb slid between the legs of a victim before detonating near a courtroom. While five individuals were initially hospitalized, all were released the same day, with three confirmed to have sustained personal injuries.

McGuire admitted that the entire attack was a retaliatory act against local law enforcement for seizing his firearms earlier in 2024. His intent was explicitly to kill Santa Barbara County sheriff’s deputies and a judge. After the initial explosion, McGuire reportedly exited the building to retrieve two long guns and 10 Molotov cocktails from his vehicle. 

He was stopped by a courthouse security guard

He planned to re-enter the courthouse to continue his assault, but he was stopped by a courthouse security guard and several law enforcement officers before he could follow through with his plan. Authorities have kept McGuire in federal custody since the day of the attack. 

During the subsequent investigation, a search of his residence reportedly led to the discovery of additional materials used for bomb-making. He has now pleaded guilty to one count of use of a weapon of mass destruction and one count of malicious destruction of a building using an explosive.

The legal proceedings are moving toward a conclusion, with his sentencing hearing scheduled for next year. McGuire reportedly faces a maximum penalty of life in prison. Following the plea, officials emphasized the seriousness of the situation. “McGuire launched a vicious, terroristic assault on a court of law with the intent to kill law enforcement officers and a judge,” assistant attorney general for national security John A Eisenberg said in a press release. 

First assistant US attorney Bill Essayli for the central district of California also commented on the case. “Individuals who use bombs against law enforcement officials, judges, and other government personnel must be held accountable and face severe punishment for their actions,” he said in the press release.