ST. CLOUD — Dahir Adan was a quiet and studious 20-year-old who came from a humble and well-known local Somali family.
But Saturday night, in an unexplained fit of rage, he put on a private security uniform, headed to the Crossroads Center mall in town and pulled a knife, slashing, stabbing and injuring 10 people before he was fatally shot by an off-duty police officer.
The stunning attack, in which Adan — a Somali refugee who moved to the United States with his family when he was 3 months old — reportedly referred to Allah and asked at least one victim whether they were Muslim, is being investigated as an act of terrorism.
Federal and local authorities are scrambling to find out whether Adan acted alone and what, if any, connection he may have had to any foreign terrorist groups. On Sunday, roughly 12 hours after the stabbings, a media agency for the Islamic State in Iraq and the Levant (ISIL) took to Twitter to claim credit for the assaults.
St. Cloud Police Chief William Blair Anderson said at a news conference Monday that investigators have yet to find evidence that Adan was radicalized or communicated with a terrorist group or acted with others. He also said that authorities have found nothing so far linking the stabbings to the weekend bombings in New York and New Jersey.
A spokesman for the FBI, which is working with St. Cloud police, said Monday that the agency could not yet provide new details in the case.
Early in the day, as President Obama telephoned Gov. Mark Dayton to express concern over the mall attacks and offer assistance, the mall reopened with increased security patrols working the entrances and lobbies and greeting subdued, but determined, shoppers.
A group of retirees clustered around a mall map, murmuring quietly as they compared what they'd heard about Adan's path as he slashed his way from Sears to Macy's. As security workers walked the corridors and circled the parking lot, other shoppers wandered the mall, looking at outfits or eyeglasses or the yipping toy dog leashed to a mall kiosk.