Begge mennene bak attenatplanene mot Jyllands-Posten og Kurt Westergaard og Flemming Rose var «men of the world». De hadde kosmopolittiske bakgrunner: født i Pakistan, av høyborgerlige familier. Den ene David Coleman Headley hadde amerikansk mor. Han kom til USA som 17-åring, det må ha vært et sjokk. Men Headley kom selv til å representere todelingen, helt ned til at han beholdt to navn, og vekslet mellom en streng islamisttisk og en sekulær amerikansk identitet, med elskerinne i New York. Ekstremismen vant, slik det gjorde for Hamburg-cellen, men han som de, fortsatte sitt ambivalente forhold til nytelser.

Raised by his father in Pakistan as a devout Muslim, Mr. Headley arrived back here at 17 to live with his American mother, a former socialite who ran a bar called the Khyber Pass.

Today, Mr. Headley is an Islamic fundamentalist who once liked to get high. He has a traditional Pakistani wife, who lives with their children in Chicago, but also an American girlfriend — a makeup artist in New York — according to a relative and friends. Depending on the setting, he alternates between the name he adopted in the United States, David Headley, and the Urdu one he was given at birth, Daood Gilani. Even his eyes — one brown, the other green — hint at roots in two places.

Mr. Headley, an American citizen, is accused of being the lead operative in a loose-knit group of militants plotting revenge against a Danish newspaper that published cartoons of the Prophet Muhammad. The indictment against him portrays a man who moved easily between different worlds. The profile that has emerged of him since his arrest, however, suggests that Mr. Headley felt pulled between two cultures and ultimately gravitated toward an extremist Islamic one.

«Some of us are saying that ‘Terrorism’ is the weapon of the cowardly,» Mr. Headley wrote in an e-mail message to his high school classmates last February. «I will say that you may call it barbaric or immoral or cruel, but never cowardly.»

He added, «Courage is, by and large, exclusive to the Muslim nation.»

A Terror Suspect With Feet in East and West