Only the last name is the same.....Hijazi
http://story.news.yahoo.com/news?tmpl=story&u=/ap/20021107/ap_on_re_mi_ea/yemen_explosion_2
The source, speaking on condition of anonymity, said the other five were known by their aliases — Saleh Abu Hamam, Al-Qia'gaa, Abu Jirah, Mounir and Jalal, also known as Ahmed Hijazi. Jalal is believed to be a U.S. citizen, according to the source. He provided no other details and did not say how authorities came to establish that Jalal was American.
You are only going on the article. It appears names did match with other aliases through other web research. Thanks.