"By Allah, we will not let you sleep unless you give peace to the Muslims. You will not celebrate or enjoy any holiday," the grateful refugee and adherent of the Religion of Peace wrote on his Facebook page before going on his rampage.

University and Obama administration Officials could of course find no link between the attack and the religion of the 18-year-old Somali, who also praised Anwar Al-Awlaki, the American-born radical al-Qaida cleric, describing him as a "hero."

Artan was also quoted in the campus newspaper, The Lantern, several months ago complaining about the school's lack of Islamic prayer rooms.