Walid is Khattab's replacement. Khattab was Jordanian, but of course these are just chechen nationalists/not.
Do you know if Walid is the same guy the Russian news reports are calling Abu Omar al Seif? Their descriptions sound exactly the same, Saudi Wahabists, very strict Islamic ideologues who control the flow of Saudi money. The article I read about Walid was dated Feb/04 and said Walid was second in command only to Basayev but was extremely powerful as he contolled all the money. Report said Walid had trained in Afghanistan (AQ) and fought in Bosnia.