looking at all the muslim people. he started arguing with me. no, i didn t do nothing. i will come. don t worry. after this. after that i don t hear about him. reporter: his mother adamantly denies her son is directing al qaeda attacks. but when i asked about the admitted times skwar car bomber she said this some time you have to do something very alarming for the people to wake up. it is not because you hate them or you want to destroy them or you want to hurt them. is there anything that you would tell your son about what he should do or not do? no. i don t have nothing to tell him. he have his own guide and his own heart. reporter: for the fbi, it is all about staying one step ahead. where will al qaeda and he strike next. he s definitely focused on attack being the united states an other western countries. looking for people? recruiting people, deciding on targets. absolutely.