(NBC News) Officials in Minnesota on Thursday released surveillance video showing the brazen knife rampage at a St. Cloud mall last month, and said the attacker who was shot dead by a police officer was likely radicalized.
The suspect, 20-year-old Dahir Ahmed Adan, had started reading the Quran in the months before the attack, became less interested in playing video games or basketball and "went from being an excellent student with a GPA to flunking out of college almost overnight," FBI Special Agent Rick Thornton said.
"We have numerous credible witness accounts of him asking victims during the attack if they were Muslim, and at least one instance of him yelling 'Allahu Akbar' while stabbing one of his victims, and others heard him yelling 'Islam, Islam,'" Thornton said.
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