Federal Charges Follow Undercover Operation
Federal authorities have arrested 18-year-old Sheikhdoon Abdullahi Mohamud, a resident of the Twin Cities, on charges of plotting a mass-casualty attack at the Mall of America in Bloomington, Minnesota. According to the U.S. Attorney’s Office, Mohamud was taken into custody at gunpoint on Tuesday in a Richfield park following an undercover operation where he allegedly acquired a Norinco AK-47-style rifle and approximately 200 rounds of ammunition. U.S. Attorney for Minnesota Daniel Rosen confirmed at a news conference Wednesday that the arrest successfully thwarted a planned attack intended to kill between 30 and 60 people.
The criminal complaint filed in federal court details a nearly two-year investigation by the FBI, which began in December 2024. Throughout this period, Mohamud allegedly exchanged hundreds of messages with a confidential human source via social media and encrypted platforms. Investigators claim these communications document Mohamud’s increasing radicalization, his stated allegiance to ISIS, and his persistent desire to engage in violence. While he initially expressed a desire to travel to Somalia to join a foreign terrorist organization, he ultimately pivoted to planning an attack within the United States due to financial constraints.
Timeline of Radicalization and Planning
The FBI affidavit notes that the agency attempted to engage with Mohamud’s parents in May 2025 as part of its efforts to address his radicalization, but those attempts were rebuffed by the family. By July 2026, Mohamud reportedly informed his contact that he intended to “prepare here in America.” He allegedly identified the Mall of America and the Valleyfair amusement park as potential targets, citing antisemitic motivations for his focus on the Bloomington shopping center.
As the plot progressed, Mohamud allegedly narrowed his focus to an October 24 date, aiming to exploit the high attendance expected at the Hmong Arts Celebration. The complaint alleges that he studied previous mass-casualty events, including the 2016 Pulse nightclub shooting in Orlando and an antisemitic attack in Sydney, Australia, as inspiration for his own plans. Authorities allege that Mohamud knowingly received a firearm and ammunition with the intent to commit a federal crime of terrorism. He made his initial appearance in federal court on Wednesday, with a preliminary hearing scheduled for October 19.
Context and Official Response
Special Agent in Charge Christopher Dotson of the FBI Minneapolis field office described the messages intercepted during the investigation as “chilling.” He stated that the documents reveal a cold commitment to violence and an idolization of ideologically driven harm against innocent civilians. Prosecutors emphasized that Mohamud, a U.S. citizen born in the country, acted alone and was not affiliated with any organized gang, though he explicitly pledged his support to ISIS during his digital communications.
During his initial court appearance, Mohamud appeared emotional, frequently looking toward his mother, who was present in the courtroom. When questioned by the judge, he confirmed he understood the severity of the charges, which include knowingly receiving a firearm and ammunition with the intent to commit a federal crime of terrorism. He further disclosed that he currently has no employment, no vehicle, and no financial resources. The Mall of America issued a brief statement following the announcement of the charges, asserting that the facility maintains multiple layers of security, both visible and behind-the-scenes, and will continue its close collaboration with law enforcement to ensure public safety. The investigation remains open as federal prosecutors prepare for the upcoming preliminary hearing, which will address the evidence gathered throughout the extensive undercover operation.