Khalid Sheikh Mohammed, who has admitted to planning the September 11, 2001 attacks and who may or may not be tried in NYC, is the subject of a feature in this week's New Yorker. An abstract of the article by Terry McDermott says, "Insofar as we know Mohammed, we see him as a brilliant behind-the-scenes tactician and a resolute ideologue. As it turns out, he is earthy, slick in a way, but naïve, and seemingly motivated as much by pathology as ideology."
There's also a slide show of letters from KSM and in one he writes, "All praise is due to Allah. I praise Him and seek His aid and His forgiveness and I seek refuge in Allah from our evil in ourselves and from our bad deeds." McDermott observes the letters seem like the kind of letter any father would write to his family but "Of course, he’s not just any father or husband. He’s a mass murderer, writing from his cell at Guantánamo. But the letters—together with an accumulating body of information, including his physical appearance and his testimony before military tribunals—were useful for me in bringing him back down to human scale. They were a reminder of how normal evil can be."
Mohammed also reportedly lost 40 pounds while in captivity (well, it has been over seven years, not to mention the waterboarding); the Post says it seems like his attempt at an image makeover, "In place of the scowling, chubby, T-shirted Mohammed, with a rat's nest of a hairdo that he had in photos taken after his capture in Pakistan seven years ago, the jailhouse snapshots show him in a white robe and headdress, with a cryptic, almost beatific smile and graying beard, holding a copy of the Koran."