a marriage arranged by this cleric, sheikh rashad, who told abc news the bride never complained about bin laden. amal has never made him upset, the cleric told us, with reprisal or guilt for not offering her a better lifestyle. bin laden required his wives to strictly follow the koran, put aside jealousy and provide sex when called. >> fulfilling the desires the male leader or the husband in the family is a very important duty for women. >> reporter: pakistani authorities said that while one bin laden son was killed in last week's raid, a second one is supposedly missing. authorities say it may be hamza, seen in this video at an. al qaeda training camp. pakistani authorities are suggesting the missing son might have escaped but a u.s. official told abc news there is absolutely no evidence that anyone got away during the raid. brian ross, abc news, new york.