Ft. Hood Shooter Nidal Hasan Pens Letter Asking to Join ISIS

Nidal Hasan, the Army psychiatrist who was convicted of murdering 13 people in the 2009 shooting at Fort Hood, has written a letter to ISIS leader Abu Bakr al-Baghdadi requesting his acceptance into the group's self-declared caliphate. "I formally and humbly request to be made a citizen of the Islamic State," Hasan…
