Pedzisa mutsara unotevera: Zebley akanga ari mumiririri chaiye weFBI achishanda nokuda kweDhipatimendi Rokurwisa Ugandanga rehofisi kwemakore manomwe. Somumiriri weFBI, Zebley akaongorora
kuputika kwebhomba pamahofisi eU.S. muEast Africa muna 1998, uye pashure pokurwiswa kwaSeptember 11 yakapiwa kuboka rePENTTBOM reFBI, iro rakatsvakurudza magandanga akanga ane mutoro wokurwiswa kwacho. Zebley aiva muchikwata chaisunga mumwe wevaputi vemabhomba emumiriri, Khalfan Khamis Mohamed, muna October 1999 muCape Town, kuSouth Africa. Zebley akanga ari mumwe wevaongorori vakavaka nyaya yaZacarias Moussaoui, uyo pakupedzisira akatongerwa kugara mujeri kweupenyu hwose. Zebley akanga ari chapupu chakapfupikiswa mumutongo waMoussaoui, achipupurira nzira idzo kureurura kwaMoussaoui muna 2005 kungadai kwakabatsira kutsvaga kupambwa kwaSeptember 11 mumwedzi pamberi pekurwiswa kwaakanga apa ruzivo rwechokwadi paakatanga kusungwa.