A military jury on Friday found Maj. Nidal Malik Hasan guilty of carrying out the largest mass murder at a military installation in American history.

The verdict, delivered by 13 senior Army officers, came 17 days after Major Hasan's court-martial began on Aug. 6, and nearly four years after the day in November 2009 that Major Hasan killed and wounded dozens of unarmed soldiers at a medical deployment center at Fort Hood here.

Major Hasan, a psychiatrist who turned on the very soldiers he devoted much of his 15-year military career to helping, sat in a wheelchair in combat fatigues, an American flag patch on his upper right sleeve. Inside a Fort Hood courtroom filled with soldiers, military police and the relatives of those he killed, but none of his own family members, he had no visible reaction and sat motionless as the jury foreman, a female Army colonel, stood and read the unanimous verdict.

Read the full New York Times story.