Por Renan Filho · 2026-10-08**Lead**
A 59-year-old man from Pima County, Arizona, was arrested Monday on federal charges after he allegedly emailed a bomb threat targeting the White House to a local Tucson news station. The suspect, identified by federal prosecutors as Mark Steven Dominguez, faces a single count of conveying a threat via interstate communication, according to court documents unsealed Wednesday. The arrest came hours after the threat prompted an immediate security response from the U.S. Secret Service and the Metropolitan Police Department in Washington, D.C.
**Contexto**
According to a criminal complaint filed in the U.S. District Court for the District of Arizona, the incident unfolded on the morning of October 5, when a reporter at KVOA-TV, an NBC affiliate in Tucson, received an email with the subject line “Bomb at White House.” The message, which authorities say was sent from an account traced back to Dominguez, explicitly stated that a bomb had been placed inside the White House and would detonate within hours. The station’s newsroom immediately contacted the Tucson Police Department, which in turn alerted the U.S. Secret Service’s Joint Terrorism Task Force.
Court records indicate that FBI agents and Secret Service personnel quickly traced the email’s IP address to a residence in Green Valley, Arizona, approximately 25 miles south of Tucson. Within hours, federal agents executed a search warrant at the home, where they reportedly seized computers, cellphones, and other electronic devices. Dominguez was taken into custody without incident. A subsequent security sweep of the White House complex, including the West Wing and the Executive Residence, found no explosive devices, and normal operations were unaffected, according to a Secret Service spokesperson.
The suspect made his initial appearance before U.S. Magistrate Judge Jacqueline M. Rateau in Tucson on Tuesday. The court ordered him held pending a detention hearing scheduled for later this week. If convicted, Dominguez faces a maximum penalty of five years in federal prison and a fine of up to $250,000, per federal sentencing guidelines for threat-related offenses.
**Analise**
While the threat proved to be unfounded, the incident underscores the heightened vigilance with which law enforcement agencies treat any communication targeting the White House or other high-profile federal facilities. The Secret Service, which is responsible for the security of the president and the White House complex, maintains a zero-tolerance policy regarding threats, whether communicated directly or routed through third parties such as news organizations. In this case, the use of a local media outlet as an intermediary added an unusual layer to the investigation but did not delay the rapid identification and apprehension of the suspect.
This arrest also highlights the legal risks associated with making threats via electronic communication, even when the sender believes the message may be dismissed as a hoax. Federal prosecutors routinely pursue charges in such cases to deter copycats and to signal that the government possesses the tools and resolve to trace digital threats. The case serves as a reminder that email, social media, and other online platforms are not anonymous avenues for threatening conduct. Law enforcement agencies across the country have repeatedly demonstrated their ability to collaborate across jurisdictions — from local police to the FBI — to identify and apprehend individuals who issue threats, regardless of their geographic location.
**Fontes**
This report is based on the criminal complaint filed in the U.S. District Court for the District of Arizona, public statements from the U.S. Attorney’s Office for the District of Arizona, and releases from the Tucson Police Department and the U.S. Secret Service. Additional context was drawn from court records and standard federal threat-assessment procedures.