ALEPPO, Syria — Khaled Saraj, better known as Khaled Hayani, is a notorious rebel warlord operating in and around Aleppo. He’s a native of the town of Hayan — hence, his nickname — just a few kilometers on the Gaziantep highway north of Aleppo. He was largely unknown from his impoverished background right up until the armed conflict erupted in Aleppo province. Soon after, he formed his own militia, the Martyrs of Badr, and through various unsavory activities quickly amassed a small fortune, all in the name of the revolution and fighting against the Syrian regime.