Soldiers who witnessed the shooting rampage at Fort Hood that left 13 people dead reported that the gunman shouted “Allahu Akbar!” before opening fire, the base commander said Friday.

Lt. Gen. Robert Cone said officials had not yet confirmed that the suspected shooter, Maj. Nidal Malik Hasan, made the comment, which is Arabic for “God is great!” before the rampage Thursday, which left 30 people wounded, including the gunman…

Cone said Hasan was not known to be a threat or risk. He acknowledged that it was “counterintuitive” that a single shooter could kill and injure so many people. But he said the massacre occurred in “close quarters.”