1: Many recruits come from educated , well-to-do backgrounds , like 25-year-old Abu Anwar of Britain . 2: Some are lured by the possibility of dying as a martyr so they can enjoy a sumptuous afterlife . 3: Analyst : Many recruits lack a sense of belonging ; some want a lavish afterlife by dying as a  martyr 
1: Many recruits 2: Some 3: Many recruits