FBI arrests man who allegedly pledged allegiance to ISIS and planned attacks on Idaho churches, DOJ says

CNN —

The FBI arrested a man on Saturday after he allegedly made plans to attack churches in Idaho and pledged his allegiance to ISIS, the Justice Department said.

Alexander Scott Mercurio, 18, was charged with attempting to provide material support or resources to a designated foreign terrorist organization, according to a Justice Department news release. The FBI’s Joint Terrorism Task Force conducted the investigation.

Mercurio planned to attack churches in Coeur d’Alene, Idaho, on Sunday “using weapons, including knives, firearms, and fire,” according to court documents cited by the Justice Department.

Investigators believe Mercurio’s alleged efforts to carry out an attack intensified following the March attack that killed 144 people at a concert hall complex near Moscow, according to a US law enforcement official. Russian and US authorities have blamed an ISIS group for that attack.

“As alleged in the complaint, the defendant swore an oath of loyalty to ISIS and planned to wage an attack in its name on churches in Coeur d’Alene, Idaho,” Attorney General Merrick Garland said in the release.

“Thanks to the investigative efforts of the FBI, the defendant was taken into custody before he could act, and he is now charged with attempting to support ISIS’s mission of terror and violence,” he added.

CNN could not immediately identify an attorney for Mercurio.

According to court documents, Mercurio had online and in-person meetings with a confidential source working with the FBI and “proceeded to express his support for terrorist organizations, specifically ISIS.”

He planned to attack a church on April 7, 2024, which he selected so that it would occur before the conclusion of Ramadan, FBI Task Force officer