Alexander Scott Mercurio
Introduction
Alexander Scott Mercurio is a 21-year-old from Coeur d’Alene, Idaho, who was sentenced on November 10, 2026, to 18 years in federal prison followed by lifetime supervised release for attempting to provide material support to ISIS. United States District Judge David C. Nye imposed the sentence after Mercurio, then 20, pleaded guilty in October 2025 to attempting to provide material support and resources to a designated foreign terrorist organization. Prosecutors said Mercurio pledged allegiance to ISIS and planned a mass-casualty attack on churches in his hometown on April 7, 2024; the FBI arrested him on April 6, 2024, one day before the attack was to take place.
Background Information
Mercurio graduated from Lake City High School in 2023, attended North Idaho College, and made the dean’s list there in fall 2023. According to court records, the FBI had been monitoring his online activity as early as 2022, during an investigation into a network that used cryptocurrency exchanges and other platforms to raise and launder money for foreign terrorist organizations. In early 2023, he created an online repository for pro-ISIS content with the purpose of spreading the doctrine of the Islamic State, and prosecutors said he wanted to travel overseas to support the group but lacked the money and resources to make the trip. He told a source he previously “drank the Kool-Aid of white supremacy” but felt ISIS had more purpose for him, according to court records.
The Controversy or Incident That Led to Their Cancellation
Sentenced. Mercurio pleaded guilty to attempting to provide material support and resources to ISIS — a charge carrying a 20-year maximum — and was sentenced to 18 years in federal prison plus lifetime supervised release. The conviction came by guilty plea, not a trial verdict.
According to court records, Mercurio told confidential sources he planned to “carry out a martyrdom operation” in Coeur d’Alene and, shortly before acting, said he wanted to donate “every last cent” of his roughly $11,000 bank account to ISIS. Days before the planned attack, prosecutors said, he stood before an ISIS flag holding a knife and recorded an audio pledge of his support for the group, and gave the informant a photo of himself holding a knife in front of an ISIS flag.
The Justice Department’s account of the plot, from court records, is that Mercurio planned to incapacitate his father with a metal pipe and take his firearms for a mass-casualty attack on a church in ISIS’s name, using flame-covered weapons, explosives, knives, a machete, a pipe and firearms. A search of the house found butane canisters, lighters, a pair of handcuffs, a knife, a machete and several firearms belonging to his father. The FBI arrested him on April 6, 2024, one day before the attack he had planned for April 7, 2024.
His defense attorneys, Carter Powers Beggs and J. Stephen Roberts Jr. of the Federal Defenders of Eastern Washington and Idaho, declined to comment on the case, but in a court filing they described Mercurio as a depressed teen when arrested who was raised in a dysfunctional family that exposed him to white supremacist ideology at a young age, was isolated from the outside world, and was befriended online by a government informant. They wrote that from age 17 he spent his days holed away in his basement bedroom talking with his best friend about increasingly radical terrorist ideologies, and that together they brainstormed “a suicidal attack on local churches using his father’s firearms and an untested improvised explosive/flamethrower.” They said he had bounced between political ideologies before embracing radical Islam when the COVID-19 pandemic hit in 2020, that he has since renounced his extremist views and been assessed as a low risk of future danger, and they asked the judge to impose a sentence of nine years.
Public Reaction and Consequences
Official statements dominated the response to the sentencing. Principal Deputy Assistant Attorney General for National Security M. Scott Proctor said Mercurio “planned to attack that fundamental freedom by bringing death and destruction to several churches,” framing the plot as an assault on the religious liberty the nation’s founders intended. U.S. Attorney John C. Shirts said the sentence “sends the clear message that where individuals intend to pursue acts of terrorism against the United States … they will be brought to justice,” and FBI Salt Lake City Special Agent in Charge Robert Bohls called the case “an eye-opener to the dangers of self-radicalization, which is a real threat in our communities.” Local outlets in Idaho and Eastern Washington covered the sentencing as it landed, with KHQ reporting federal officials’ view that the sentence “reflected the seriousness of the plot and the threat it posed to religious communities in Idaho.” No family statement or response from either school Mercurio attended was reported in the coverage reviewed for this page.
Current Status
Mercurio, 21, began serving an 18-year federal prison term after his November 10, 2026 sentencing, to be followed by lifetime supervised release. He pleaded guilty on October 22, 2025, in a plea announced by then-U.S. Attorney Bart M. Davis; sentencing was originally set for January 27, 2026, before the case reached the November docket. Because the conviction rests on a guilty plea rather than a jury verdict, no trial findings were entered; the plea is itself a conviction, and the 18-year term plus supervised release is the court’s judgment. His attorneys’ sentencing filing states he has renounced his extremist views and been assessed as a low risk of future danger.
Impact on Their Career/Life
The sentence takes Mercurio from a dean’s-list college freshman to a federal terrorism convict who will be in his late thirties when his prison term ends, after which he will remain on supervised release for life. The plot he admitted to targeted worshippers at churches in his own city, and the Justice Department framed the sentence as protecting the freedom to worship without fear. On the single pleaded charge he faced a 20-year maximum and received 18 years — far above the nine years his own attorneys requested and a term prosecutors and the judge treated as matching the scale of what he planned.
Sources
- “Coeur d’Alene Man Sentenced to 18 Years For Attempting to Provide Material Support to ISIS — DOJ, U.S. Attorney’s Office, District of Idaho” source
- “Coeur d’Alene Man Pleads Guilty to Attempting to Provide Material Support to ISIS — DOJ, U.S. Attorney’s Office, District of Idaho” source
- “Idaho ISIS wannabe Alexander Scott Mercurio jailed for 18 years over plot to massacre churchgoers — New York Post” source
- “Coeur d’Alene man gets 18 years for ISIS-linked church attack plot — KHQ” source
- “Coeur d’Alene man pleads guilty to supporting ISIS — Coeur d’Alene Press” source
- “@nypost on X: Idaho ISIS wannabe Alexander Scott Mercurio jailed for 18 years over plot to massacre churchgoers” source