Antonio Martinez was a punk. The twenty-two-year-old from Baltimore was chunky, with a wide nose and jet-black hair pulled back close to his scalp and tied into long braids that hung past his shoulders. He preferred to be called Muhammad Hussain, the name he gave himself following his conversion to Islam. But his mother still called him Tony, and she couldn’t understand her son’s burning desire to be the Maryland Mujahideen.

As a young man, Martinez had been angry and lost. He’d dropped out of Laurel High School, in Prince George’s County, Maryland, and spent his teens as a small-time thief in the Washington, D.C., suburbs. By the age of sixteen, he’d been charged with armed robbery. In February 2008, at the age of eighteen, he tried to steal a car. Catholic University doctoral student Daniel Tobin was looking out of the window of his apartment one day when he saw a man driving off in his car.