Columbus: Abdul Razak Ali Artan, the Somali-born attacker, who was fatally shot dead by policemen for launching a gruesome attack on Ohio State University students, had left an anti-US Facebook post that was quickly taken down by the authorities.
Investigators have discovered that Artan had expressed his anger about the treatment of Muslims around the world in his post.
"I can't take it anymore. America! Stop interfering with other countries, especially the Muslim Ummah (community). We are not weak. We are not weak, remember that," his post read.
"If you want us Muslims to stop carrying lone wolf attacks, then make peace," the post reads. "We will not let you sleep unless you give peace to the Muslims."
Law enforcement officials told NBC News that Artan was a Somali refugee who left his homeland with his family in 2007, lived in Pakistan and then came to the United States in 2014 as a legal permanent resident.
Artan also referred to Anwar al-Awlaki, a US-born Al-Qaeda cleric, as a hero in the posting.
His shocking attakc lasted just a few minutes -- from the car careening into the crowd until the suspect was shot dead -- but triggered a tense lockdown on the university`s main campus in Columbus, with panicked students hiding in bathrooms before the scene was declared secure.
Officials said 11 people were being treated at local hospitals for stabbing wounds and injuries from the motor vehicle. None of their injuries were life-threatening.
Columbus police chief Kim Jacobs said earlier in the day they were considering the "possibility" that it was terrorism related.
The rampage comes two months after a Somali immigrant stabbed 10 people at a mall in Minnesota, before he was fatally shot by an off-duty police officer.