Al Qaeda’s Warrior Poet

Mr. Martinez came in after the rough stuff, the ultimate good cop with the classic skills: an unimposing presence, inexhaustible patience and a willingness to listen to the gripes and musings of a pitiless killer in rambling, imperfect English. He achieved a rapport with Mr. Mohammed that astonished his fellow C.I.A. officers. A canny opponent, Mr. Mohammed mixed disinformation and braggadocio with details of plots, past and planned. Eventually, he grew loquacious. “They’d have long talks about religion,” comparing notes on Islam and Mr. Martinez’s Catholicism, one C.I.A. officer recalled. And, the officer added, there was one other detail no one could have predicted: “He wrote poems to Deuce’s wife.”